Bag flags form for letters to Berlin, DR / Allied occupation!!!RRR

Two pouches flags for letters to the post office Berlin N3, in unseparated pair of printed sheets, without imprint.
Survived from postman's estate and to my knowledge has never offered bag flags from the transitional period Deutsches Reich / Allied occupation.
After my previous, added quite meager, research, bag flags were printed on the print sheet to 2 x 2 or 4 x 2 flags. Only one of these flags in the printed sheet has a imprint.
The printed sheets have been completely delivered to the Post Offices concerned and fold there usually, by easy and edge rip separately.
Since only meant for the post internal needs, such forms could never really get into private hands!
(All 7 bag flags pairs that we offer at the time in the shop are unique pieces and each only once and deliverable., Please consider!)