There are 11 Travel Air E-4000 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 1928 and 1929.
N622H
1929 Travel Air E-4000
Albuquerque, NM
N691K
1929 Travel Air E-4000
Englewood, FL
N9088
1929 Travel Air E-4000
Brodhead, WI
N9048
1928 Travel Air E-4000
Newport Beach, CA
N9079
1928 Travel Air E-4000
Vienna, VA
N390A
Travel Air E-4000
Fredericksburg, TX
N402N
Travel Air E-4000
Dallas, OR
N405N
Travel Air E-4000
Williamson, GA
N608K
Travel Air E-4000
Vienna, VA
N619K
Travel Air E-4000
Lakeland, FL
N685K
Travel Air E-4000
Thousand Oaks, CA