Looking in to older German coins for the first time and I am seeing a lot of references to "Lamb", ex: "Lamb 567.4", "1918 WEIMAR LAMB-567.4 IRON" etc. I've searched for this Lamb catalog/book/system but cant find anything on it. I'm guessing its similar to the Freidberg system for US Currency. Anyone have any links they can direct me to look in to it? Thanks
Something like this maybe... https://www.amazon.com/Catalogue-German-War-Tokens-Municipal/dp/B0007ED0GA https://www.numisbids.com/n.php?p=lot&sid=2986&lot=410
More stuff from google... Website partly based on info from Lamb's catalogue. https://www.joelscoins.com/notgeld/notgeldger1.htm https://www.joelscoins.com/notgeld/notgeldbooks.htm