No published sn data that I am aware of.
No published sn data that I know of.
No public domain sn data I know of.
No published sn data.
no published sn data
No sn data available.
No published sn data I know of
No known sn data published.
No data published. Firm is in Suhl, Germany.
No sn data in the public domain.
AFAIK, no sn data has ever been published.
No published sn data I am aware of.
I am unaware of any published serial number data. The Blue Book of Gun Values might have a range of years of production.