This is an original 1921 halftone print of United States Aerial Mail Service officials inspecting an airplane's self-starter in the engine (image credit to Kadel & Herbert).
This 90+ year old Item is rated Near Mint / Very Fine. Light aging throughout. No creases. No natural defects. Some light surface rub. No tears. No water damage. Please note there is printing on the reverse.
Product Type: Original Halftone Print; Black / White
Grade: Near Mint / Very Fine
Dimensions: Approximately 5.5 x 7.25 inches; 14 x 18 cm
Authentication: Serial-Numbered Certificate of Authenticity w/ Full Provenance
Protection: Packaged in a custom archival sleeve with an acid-free black board (great for display, gift-giving, and preservation)
Keywords specific to this image: aircraft, blade, motor, motoring, kick, start, starting, propeller, technology, machinery, mechanics, startup, pilots, flight, flying