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


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.


Accomplished Collector
  • Content Count

  • Joined

  • Last visited

  • Days Won


Everything posted by DaveG38

  1. DaveG38

    Ebay's Worst Offerings

    Here's an optimist on the US eBay site. What is interesting is that he 'may not ship to the UK.' https://www.ebay.com/itm/Rare-Elizabeth-2-collectable-coins-1971-1988-1985-One-pound-Elizabeth-II/324026633296?hash=item4b717e0c50:g:k2oAAOSw94pdPyBO
  2. I can get Tesco slots in a few days time with no problem now.
  3. There are but in N. America. Ooops! He must be red fox, but apart from the head he's nothing like a red fox. Body colour is all wrong, tail colour and shape isn't right. Not sure what type he is, except he's definitely a fox.
  4. Here's my regular visiting fox, just having a snooze in the late afternoon. As far as I can judge, he's either a grey fox, or he's a hybrid grey/red. Pic is a bit grainy as its taken through glass.
  5. DaveG38

    2009 Blue Peter Olympic 50p

    There are two on ebay at the moment with bidding at £205 and £255!!! And that's with more than a day to go. Paid £3.49 for mine.
  6. Not a solicitous call, but a comedian and a spoof email thread. Great stuff. https://www.youtube.com/watch?v=_QdPW8JrYzQ or this one https://www.youtube.com/watch?v=C4Uc-cztsJo
  7. I have a complete set of these mags and I have considered doing this in the past. All it would take is scanning the pages into the PC and organising them for a website and for reading. Not too hard. More tricky if you want to be able to search for specific articles or entries. The problem is that I don't know who now owns the copyright. I knew a lady who was a proof reader for them, but she wasn't able to help with anybody to contact now, for permission. At the end of the day, there are some 25 years of mags, 12 per year excluding those when they came out every fortnight, and say an average of 80 pages per issue. That's 24000+ scans. Could do it, but not if, the moment I publish them, someone comes along and says 'oi they are mine'. Having said this, I'm talking about reproducing the whole mag, not just selected articles. The problem with the latter is choosing which ones, especially as it wouldn't be long before demands grew for more and more of the content to be made available. Plus, of course, there is still the matter of copyright.
  8. Correct, but no 1967 penny for you.
  9. This is a simple one. What sentence was used by BT engineers to check the correct operation of all the alphabet keys on the keyboard on a telex machine? The correct answerer doesn't even get a 1967 penny as a prize.
  10. I have diabetes and my other half has asthma, and we are both over 70, but we don't quality either.
  11. I'm leaving the garden for now. Spending time giving the cars a thorough cleaning and polishing. Its amazing how much algae and other grot there is in all the nooks and crannies. They've never looked so good or been so well cleaned. However, does anybody have any ideas for a suitable treatment for a black canvass roof that is beginning to grow mildew and green patches. It doesn't matter how much I scrub the green patches and mucky green water runs off, I still can't get rid of it all. Also any ideas for re-blacking the roof?
  12. Well done that man!
  13. You are all correct that it is a green and red stamp, but the logic that leads to this is quite extensive. As a starting point, if the first student sees 4 red stamps on the other two students foreheads then he knows immediately that he has 2 green on his own. And vice versa if he sees two green. Hence if he says he doesn't know this can't be the solution. This conclusion is one that the next student understands so he then goes through all the possible combinations to conclude that he doesn't know either, and so on. Each successive question to a student results in the student analysing what the previous student(s) concluded, and taking the problem forwards. By the time we get to the fifth round, the student has examined all the previous possibilities and knows that these can all be discounted, and so he comes to his own definitive conclusion - one red and one green. I could go through each stage with all the permutations and the conclusions drawn, but there aren't enough hours in the day to do this. Try it if you want to, but it takes many pages of 'what ifs' to get to the answer.
  14. OK, here's a complex one. Three logic sudents are sat in class in front of their professor. He shows them 8 stamps, 4 green and 4 red, and sticks 2 stamps on the foreheads of each student and places the other 2 face down on his desk. He then asks the first student if he knows which stamps are on his own forehead. The student thinks for a minute and says 'no.' The professor then asks the second student and again the student says 'no' to the same question. The professor then asks the third student the same question and gets the same answer. The professor then goes back to the first student and again poses the same question. The student thinks for a bit longer, but again says 'no' he doesn't know which stamps are on his forehead. Finally, the professor asks the second student the question again. The student thinks for some time and says 'yes' the stamps on my forehead are......????? Each student can only see the stamps on the other students foreheads, students cannot remove stamps and there are no mirrors or other reflective surfaces in the room. In other words this has to be solved by logic alone. What stamps does the second student have on his forehead?
  15. David, Where did you order it and how much? Dave G
  16. No, it doesn't matter whether you ask the lying robot or the truthful one. The answer is the same. I was simply illustrating this for both types not assuming two questions.
  17. This is how it works. Point to one door and ask each robot the question 'if I ask you if this is the door to safety would you say yes.' Assume the door I point to is the safe one. The truthful robot will simply say yes, he would say this because it is true. The lying robot says to himself, I know that the door pointed to is the safe one, but because I'm a liar I would say no. But then the rest of the question asks whether he would say yes to his own lying answer. Logically, the robot being a liar will directly contradict his earlier 'no' answer so he says yes to the question, since he is lying about his own earlier lie. Hence both robots indicate which is the correct door and so you can escape. Works the other way round for the wrong door. This has always been my understanding of the puzzle, but if anybody knows different please say. PS: Missed the answers already given, which have a greater logic. My answer was predicated on a slightly different version, whereby a man is walking through the jungle and comes to a fork in the road. There is a native at the fork. One arm of the fork leads to safety and the other to certain death in the alligator swamp. The man knows that some natives always lie and others always tell the truth, but there is no way he can determine which type of native he has encountered. As before what one question can he ask to determine the way to safety?
  18. You can ask a conditional question. By doing so you ensure that it doesn't matter whether the robot being asked is a liar or atruth teller. So you ask ' if I ask you if this is the safe door, would you say yes.'
  19. All, Does anybody know who the eBay dealer '1.10TH' is? Thanks
  20. Thank you for that - I didn't realise it was that simple.
  21. No good for me - its not gluten free!!
  22. Personally, I'm overwhelmed with indifference.
  23. DaveG38

    Childhood excitement!

    Were you one of the ba+*^rds at PERME, who demonstrated explosives to my team as part of our counter-sabotage training? The army guys used small amounts of explosives and det cord to blow up various bits of telecomms plant, such as cable etc. (I worked for BT at the time in the early 1980s). When they showed us what the effect of home made explosives (Co-op) on steel plate the results were impressive, but made more so by the army guys tossing gravel on top of the shelter we were in, to simulate shrapnel from the bunker where the explosions occurred. Anything to scare those lily-livered civilians!
  24. I don't mind a few adjustment marks, but I draw the line at obliteration of part or all of the date.