There are 4 Aero Commander 690 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1972 and 1976.
N699SB
1976 Aero Commander 690
Omaha, NE
N9175N
1973 Aero Commander 690
Mesa, AZ
N690RA
1972 Aero Commander 690
Mesa, AZ
N690TR
1972 Aero Commander 690
Wilmington, DE