Starting in 1940 Olympia Bock Beer in Bottles was identified by the word Bock on the label and a special red and white cap with the words Olympia Bock on it. These bottles are obviously very hard to come by as they were only out for a short time each year for two years. The bottles were available in stubbies long necks and the oh so tough quart. Bock beer was delivered in Kegs with special green bungs and cases with green bock stickers on them. I have never seen an Olympia Bock cardboard case with the special bock sticker. This is probably not surprising given the shortage of cases during the war and most being recycled.