There are 4 Erco 415-D 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 1946 and 1948.
N94641
1948 Erco 415-D
Newport News, VA
N87048
1946 Erco 415-D
Vadnais Heights, MN
N94134
1946 Erco 415-D
Easton, PA
N99158
1946 Erco 415-D
Winthrop, WA