K class blimps.jpg
en
K class blimps, K-class blimps, Kite Balloons to Airships... the Navy's Lighter-than-Air Experience
commons
ja
K級飛行船、K級飛行船、飛行船に気球...海軍の軽飛行機体験
commons_translated
kite balloon blimp lighter-than-air