There are 6 Cassutt IIIM 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 1968 and 1975.
N3665
1975 Cassutt IIIM
Lutz, FL
N26EC
1973 Cassutt IIIM
Salem, OH
N10TL
1972 Cassutt IIIM
Palm Coast, FL
N27JM
1968 Cassutt IIIM
Auburn, WA
N200KT
Cassutt IIIM
Palestine, TX
N4535
Cassutt IIIM
Wichita, KS