M120715a
Circle containing "CB 2" and "GERMANY".
This mark comes in two versions: a circular one and a plain text version in two lines. Both versions can be found on various kitchen canister sets, as well as on some lamp bases. The number does not refer to the shape or pattern of the item and is therefore believed to be an internal reference to the original manufacturer of each item.
M120715a
Circle containing "CB 2" and "GERMANY".
M120715b
Circle containing "C.B. No.2" and "GERMANY".
(Picture: Ceil Jancola,)
M120715c
Plain text reading "MADE IN GERMANY" and "FOR C.B. NO.13".