There are 3 Kolb TWINSTAR MARK II 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 1991 and 2007.
N722KM
2007 Kolb TWINSTAR MARK II
Lake Odessa, MI
N177RM
1991 Kolb TWINSTAR MARK II
Garden City, TX
N8743J
Kolb TWINSTAR MARK II
Wild Rose, WI