There are 3 New Kolb Aircraft KOLB-MARK III-X 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 2002 and 2005.
N46319
2005 Ballenger James E KOLB MK III EXTRA
Suffolk, VA
N3053B
2002 Swenson Guy A KOLB TWNSTR MK 3XTRA
Barnesville, MN
N970CW
2002 White Charles F KOLB MARK III
Rollins, MT