[sdiy] Old Motorola parts ID

[mirwin at qouest.net]

Hi List, 
Recently obtained a box of some truly vintage Motorola chips - datecodes
appear to be 1964 and 1965 (this is believable since a few tunnel diodes 
were also included)

The chips are MC353G  MC355G  MC356G  MC357G MC358G  MC359G

These are all in gold-plated metal can packages, not DIPs, most having 
10 pins.... with that datecode they are certainly not BIFET op amps.
Anyone have any idea what these are? Op amps perhaps? RTL?
Regards, Mike
P.S. Last year  had a brief look at an IC crossreference manual from 
1968 and there were literally 1000's of different chips available at 
that time.... with most of the manufacturers prefixes not in present 
use.