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A couple of comments, obviously from my perspective (but then again I probably had way too much chemistry, pharmacology, etc.): Pure acetone not generally a problem and not nearly as toxic as many may lead readers to believe. In the States, we get it at Home Depot for about $8 per quart and that is quite a quantity. It will react on long exposure to copper surfaces. I recommend it applied with the aforementioned soaked cotton buds or "Q-tips" as we call them on this side of the Pond. Please do not scrub surfaces, and I suggest tamping the surfaces or worst case very light circular strokes sans pressure applied. The cotton on these buds is sometimes not cotton or is of tight wound fibers that are possibly more likely to damage coin surface. Even after acetone treatment, I wash thoroughly with tap water then apply WITH MY FINGERS and rub into the surface mild dish detergent. I then rinse even more thoroughly and then tamp dry with a high nap white cotton towel. My favorite solvent, and not just for organics, is the aforementioned ammonia which should be without colorizers or additives if possible. I then do soaks for varying period and use the soaked cotton buds to again work the surfaces in like manner to the acetone. This will reduce some oxidants and not damage the metal on silver, gold or copper nickel but can not guarantee copper and would therefore probably not use it on copper... There are also the redox tricks which will pull away generally more problematic surface oxidants. Many ways to do it, and experimentation is suggested on lesser coins. One method is to microwave vinegar for 2-3 minutes and then throw in a thin sheet of aluminium, and then baking soda in modest amounts (such as 5 ml/one teaspoon), and then the coin. This one is more fun than the others but have to take care. This REALLY works well on gold coins with those infernal red copper spot oxidations... Blah, blah, blah,,,,,,Anyway, just a couple of points....

I love these coins and want to collect as many as possible. What do you guys think of this example? Any issues? Potential NGC grade? I know it's a lot to ask, so maybe just opinions on it's appearance.

Local supermarkets still supply it behind their pharmacy counters for around £2…no brainer over getting it posted! 😊

You’re not using the brands with added moisturisers for cleaning nails are you?

I now have contact with Gunter Aschoff who wrote the German equivalent to Rogers and the conversation between us is going nicely. I will paste in his thoughts and hos interesting news of a potential new book from a swiss collector who he sold his entire collection to . Exciting news I think Hello Larry, I've always collected coins and eventually started collecting childrens coins . When, after 30 years of collecting, I had a lot of coins, I put them together in a catalogue. "Deutsches Kinderspielgeld° coins, bills and cans. Published in 2008 (Battenberg). When there was no longer any demand after a few years, the publisher stopped production and the book is no longer available. A large collector from Switzerland then later ( 2022) bought my complete collection. He now wants to combine his and my collection and digitally distribute a new catalog with further findings. That should happen in a few weeks. It might be good for you to wait for this print. But maybe I can do it for you too nor send my catalog digitally. Balmberger and Lauer are described in great detail in the catalogue. Lauer has not coined for all European countries. As far as I know, there were 12 countries, and he coined a particularly large number for the English kingdom. You can find this information in detail in the catalogues. Gunter Aschoff. Viersen is located on the Niederhein near Düsseldorf (30km or Cologne 60km away)