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AardHawk

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Posts posted by AardHawk


  1. Volumes 1-12 are available via google books for download. You find them by luck when doing a general internet search.

    Volumes 13-26 are available via https://catalog.hathitrust.org/Record/008420717  Some for full down load others page by page. You can download in jpeg, txt or pdf format.

    The next question is, "how do you download royalmintmuseum volumes?".  I can print screen captures using ImagePrinterPro at 800dpi  which gives very good results, but is very longwinded. Anyone know how to grab the whole volume using some PC trickery via run on the windows tab. 

    PS. The National Archives volumes are not digitised so personal visit only. Take your phone or camera and photograph each page. I did that in Dec 2019, but covid got in the way for a return visit.  

    • Like 1

  2. 5p Varieties 1969 – 1990

    At first glance there does not appear to be much of interest, just a coin with what appear to be identical obverses and reverses.

    As with all coins that have boarder teeth  (bt) or in this case boarder beads (bb), its all about the “pointings”.

    There are however some interesting obverse varieties concerning the shape of the truncation, which follows similar changes on all the other decimal coins, especially during the period 1985 through 1990.

    It is also worth noting that the early coins were released before decimalization on 15th Feb 1971, so in both size and style at least, they truly belong to the LSD era. 

    See the Summary and Details section following the pictures for precise descriptions.

     Obverse 1 1968 – 1977

    51012717557_5f5242b9c2_b.jpg

    2nd portrait.

    Obverse 2 1977 – 1983

    51011912118_90f24a8dba_b.jpg

    Obverse 3 1984

    51012626986_0804fbab53_b.jpg

    Obverse 4 1985

    51012626946_0c3ea6e372_b.jpg

    3rd portrait with a long pointed tip to truncation.

    Obverse 5 1986 – 1987

    51011911983_1f1867bb87_b.jpg

    Obverse 6 1988

    51012626896_137eae545a_b.jpg

    Obverse 7 1989

    51012626846_0af86bd340_b.jpg

    Obverse 8 1990

    51012627101_29d0226a3f_b.jpg

     

     

    Reverse A 1968 – 1980

    51012718232_6837d3e09b_b.jpg

    Reverse B 1972 – 1983

    51012718187_f268720b9e_b.jpg

    Reverse C 1982 – 1989

    51011912753_e7de4acbbb_b.jpg

    Reverse D 1990

    51011912893_a263928961_b.jpg

     

    Summary and details.

    51014873806_891bfc5dd5_b.jpg

     

    51014964722_c9a27a3fde_b.jpg

     

    • Like 8

  3. 7 hours ago, Mr T said:

    Nice work.

    Poor old decimals never seem to enjoy the same love as predecimal.

    For me at least, its all about finding them in your change. The excitement to me as kid, in NZ, was finding pennies from New Zealand, Australia, Great Britain and occasionally South Africa in my change and I would always spend my pocket money in such a way, as to get as many coins in change as possible , in order to fill any gaps. Until a few years ago I used to to do the same here (in the UK). 

    • Like 1

  4. At first glance there does not appear to be much of interest, just a small heptagonal coin with what appear to be identical obverses and reverses.

    There are however some interesting obverse varieties concerning the shape of the truncation, which follows similar changes on all the other decimal coins, especially during the period 1985 through 1992. There are also some very strange variations to William Gardner’s initials on the reverse.

    Obverse 1 1982 – 1984

    50984841891_6d24c52400_b.jpg

    Obverse 2 1985 – 1992

    50984950642_5fbac6a836_k.jpg

    3rd portrait with a long pointed tip to truncation. When discussing 1992 varieties, this is known as the Small Head.

    Obverse 3 1986 – 1993

    50984136028_bb5a50fc3a_k.jpg

    3rd portrait with a slightly rounded tip to the truncation and reshaped and slightly more curved lower edge. When discussing 1992 varieties, this is known as the Small Head.

    Obverse 4 1992- 1997

    50984950557_0d116f2c10_b.jpg

    3rd portrait with a more pronounced rounded end to the truncation and an even   more curved lower edge. The whole head has been recut and the hair particularly so. When discussing 1992 varieties, this is known as the Large Head.

    Obverse 5 1998 – 2008

    50984950697_91d0eff7a8_b.jpg

    4th portrait. I haven’t really looked at these obverses in any detail, so there may be varieties waiting to be found.

    Reverse A 1982 – 2008

    50984868581_9fcbfb70ec_b.jpg

    The only variation to the reverse is the designer’s initials, which change in size and position.  They are always the same for each year. Circulation, Brilliant Uncirculated Set and Proof Set are all the same. I keep expecting to find a hidden message similar to the Egyptian, British Protectorate coins. Time will tell! Keep thinking it may be semaphore! Anyway see W.G. Initials below.

    Summary and details.

    50984843606_7942804039_b.jpg

    50984843581_75868afb6a_b.jpg

    W.G. Initials.

    Each pic has my personal unique reference number. i.e. P1991-1, so Proof, year and coin #, or C1992-2, Circulation, 1992 coin #2. B stands for Brilliant Uncirculated.

     

    1982-1987

    50984843576_4314b74651_b.jpg

    1988-1989

    50984137773_13786d7fb0_b.jpg

    1990-1992

    50984137768_8e0fba76e1_b.jpg

    1993-1997

    50984843521_4ace75c422_b.jpg

    1998-2001

    50984137723_e06b602828_b.jpg

    2001-2008

    50984137863_febed39ffc_b.jpg

    Other notes

    Sometimes when studying Obverses, I’m certain that the B of ELIZABETH is vertical, or the base is to the left of centre, or it leans right etc. I really don’t know. I think I’m expecting to find something like the P of PENCE on the 50p reverse B. On some Reverses the leaves seem to be better cut and have corrugated edges, when on others they seem to have smooth edges. 

    • Like 4

  5. 17 hours ago, Martinminerva said:

    Must have taken many hours to produce, so a good deal below the minimum wage! Anyway, a nice curio...

    Any skilled metal worker could have done that. A watch repairer or a plumber.  A little flux and a bit of solder. Get two '59s and on the first one carefully file off the parts you dont wont. Five minutes. Take the second 59 and carefully cut off a "repair" section using a chisel. Five minutes. Flatten the underside using 1000 grit wet and dry. A touch of flux and a  bit of solder on the underside. Heat till the solder melts. Five minutes. A touch of flux on the first penny, place the repair section on and heat using a flame. Tidy any excess solder with a pick . Five minutes. Job done. Twenty minutes total. So that was the first one, now that I know what I'm doing and I've assembled all the tools I need and got the workspace sorted, rattle off the other eleven. Forty minutes. Skilled mans wage, 1/- an hour. Flog 'em for 2/- each. Quids in. Lubbly Jubbly.


  6. On 8/1/2020 at 11:40 PM, Mr T said:

    I vaguely recall reading a similar theory before so you may be onto something - might have been in one of Michael Gouby's books? I really can't remember now.

    Its not a theory its standard engineering practice,

    Whats really interesting is my computer says its 17:08 on Friday, but the forum software thinks it is some time on Saturday, 11:40pm. How does that work?


  7. 17 hours ago, Peckris 2 said:

    Though it has to be said that the absence of those micro-varieties in all price guides does rather indicate the level of interest in them.

    Just out of interest Father Andrew had already addressed this issue, and he of course used the correct terminology, minor varieties. 

    50173542431_8da61640a5_k.jpg

    50172997123_9b231333f4_k.jpg

    50172999698_86393f4a74_k.jpg

     

    • Like 1

  8. 10 hours ago, Peckris 2 said:

    That's gone the same way as the even earlier article pointing out many "varieties" of 1907 penny based on the tail of the 7! Now (deservedly) vanished without trace.

    50169294862_bfa52f4e6b_k.jpg

    50169295237_ffa5b16b6c_k.jpg

    There you go Peck

     

    I do like the comments by three premier coin collectors below

    50169130856_d221ed09f7_k.jpg

    • Like 1

  9. On 4/14/2020 at 11:15 PM, Peckris 2 said:

    I think I posted Sealy's list from a year later (1970) when the number of varieties had reduced to fewer than 7? I'm always suspicious of that era's "blunt" vs "pointed", as they can be put down to wear, either of the examples found or the dies.

    I'm not sure there is any kind of market for 1957 calm sea varieties, particularly when they are of such a micro nature. I'm happy to have a BU example and don't care which it is, frankly.

    I would think you are referring to the 1970 Coins and Medals annual

    49780691978_230f0cd554_k.jpg

    That David Sealy refers to. I believe it was collated at the end of 1969, so dosnt include any new discoveries.

    As for there not being any market for calm seas varieties, good, I dont want my hobby being destroyed by parasites looking for profit.

     


  10. 2 hours ago, ozjohn said:

    .

    . I appoligize  for my initial scepticism but I guess that's the engineer coming out never accept anything on face value. I have to say your post was the first I have heard of thermoradiative  cells and I have not seen anything so far from the renewable energy brigade in Australia. Thanks for alerting me.

    It seems that these theromradiative cells are like  the QM equivalent of heat pump where a small amount of energy is expended by radiating it out to outer space and drawing a greater amount of energy from the environment which in turn gives electrons the energy to jump into the conduction band and become available as useable energy. I guess I was too tied up with the operation of conventional PV cells to see the difference. Thanks again for alerting me to this new technology. 

    Apology accepted even though it was not required..

    There were some other articles attached to that one giving some other details and ideas. Just how effective any of them would be, I dont know.

    If heat is being sucked in from the surroundings, utilised, and then photons transmitted to outer space, then I think it would be good for cooling your house in Queensland, even if it didnt produce significant Kw. Not sure how it would get on in Canada though! 

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