VINTAGE SEGAL CYLINDER LOCK, W/2 KEYS, DEADBOLT LOCK

Description

My knowledge of locks is limited. Do know this vintage Segal lock set came from our NYC appt. in the early 1970's.
Body of lock appears to have a satin brass finish with the insert, knob, keeper plate, lock face and screws a copper color.
I do not know the metals used but different areas are magnetic.
There are tiny scratches and 'chews' on the brass; a dent on top front edge. ( See pic 7)
Copper insert has a shallow 'hole' which I think was done in the manufacturing.
Backside interior plate has corrosion/discoloration.
There is slight discoloration on right side edge of cylinder lock face.
"Beauty Ring" has tarnish and a slight dent.
So much for the cosmetics...the locks work great!
There are 8 screws and 2 keys.  One is a Segal key, the other a duplicate.
Please look at pictures carefully and email with any questions or concerns. Again, my knowledge is limited.
Thanks for looking!