![# C4 (1923) Propeller Airmail - Sgl, MH [8]](http://www.robsstampshop.com/cdn/shop/products/C4MH_530x@2x.jpg?v=1629999410)
# C4 (1923) Propeller Airmail - Sgl, MH [8]
Regular price
$7.85
Sale
US 1923
SECOND AIR POST ISSUES
Radiator and Propeller
Scott C4
Stamp Single
Scott C4
Perforated 11