Jump to content
British Coin Forum - Predecimal.com

50 Years of RotographicCoinpublications.com A Rotographic Imprint. Price guide reference book publishers since 1959. Lots of books on coins, banknotes and medals. Please visit and like Coin Publications on Facebook for offers and updates.

Coin Publications on Facebook

   Rotographic    

The current range of books. Click the image above to see them on Amazon (printed and Kindle format). More info on coinpublications.com

predecimal.comPredecimal.com. One of the most popular websites on British pre-decimal coins, with hundreds of coins for sale, advice for beginners and interesting information.

IanB

Sterling Member
  • Content Count

    571
  • Joined

  • Last visited

  • Days Won

    6

Posts posted by IanB


  1. The simplest way to post a picture is to place it on your desktop and then in the bottom left of the area you write to post a comment you will see a paper clip with click to choose file. You should then be able to do exactly that. It needs to be less than 0.49mb in size so if it will not load then resize it smaller and have another go. 

    You may need to close the post and reopen it if you are having a second go at reloading it.

    Try that first if it doesn't work let us know.


  2. Hi Sophie,

    Because you are using an iPad you may have to download something from the App Store that will help you resize your photos you should then be able download them onto your post by selecting the " click to choose file " tab. Sorry don't know what would be best for this but maybe someone can recommend something.

    Another way of getting pictures on here is to save them to something like Flickr or some other hosting site and then cutting and pasting the URL using the 

    "Insert other media" tab.

    Hope that makes sense

    Ian

     


  3. Don't know the mintage figures for these coins but not every coin will have fire stain. It may still be there on a BU coin, but is lost in the brightness of the metal and only become visible when the metal loses its shine and becomes matt through wear.

    A way of spotting firestain is to place a piece of tracing paper in contact with the metal, this diffuses the light and reflections and the stain appears as a grey patch through the tracing paper.

    As I said not every coin will have firestain, it depends on how the metal was heated during production. It may also have been polished out prior to stamping.

    I have attached an article that talks about fire scale, another name for the same thing.

    http://www.silversmithing.com/1fire.htm


  4. The greyish, pinkish patches spoken about earlier that appears on silver is called firestain. It occurs when silver is heated usually during the annealing process. Oxidisation takes places reacting with the copper used in the silver resulting in these patches forming on the surface.

    This can sometimes be covered by heavy silver plating but is more often polished away. In general acid will not remove it unless the silver is left in so long that it starts to dissolve.

     

     

     


  5. 1 hour ago, zookeeperz said:

    By the look of the colons it appears to be Obv A I give up looking at pictures they lie lol. No idea now from your blow up its obverse 1 and 2 but the thinner P if it is lol edges me towards obverse 2:o:rolleyes:. Changed my mind again there is no way the the P can be right of the tooth so it must be Obverse 1 and that is my final vote from the swedish jury :)

     

    I can only thank the Swedish jury for their vote:blink: although it has crashed my brain completely:huh:

    I checked out Secret Santa's website and it mentions the P in IMP but nothing about colons. Nothing in the Freeman book either. What am I looking for regarding the colons?


  6. 2+B or not 2+B, that is the question?

    Could I have a comment or two as to whether this is a 1937 2+B or not. Its doing my head in trying to decide if the P in IMP points to the left or the right or even straight onto a tooth.

    Sorry about the quality of the photos, I am using my phone at the moment.

    Thank you

    kRZe4Yfd.jpeg


  7. 3 minutes ago, mrbadexample said:

    That doesn't explain the top of the Queen's head and some of the edge lettering present within the hole though.

    Fair point.

    Another possibility could be that something fell onto the die and was sandwiched between the die and the planchet. The stamping process took place and the coin was then ejected into the next step.

    The piece of something either remained on the die or fell out the coin leaving the recess. We would see the imprint of the head and lettering through the recess.

     

    • Like 2
×