I suggest photografer code BB refers to Bettina Bergemann, retired danish photografer.
Reference images "BBE 5133" and "BBE 2262" from this page:
https://www.cupido.no/Bettina-Bergem...c-Photo-Cupido are from the same sets as bb0149 (akin to image 20) and bb0011 (similar to image 1).