MAY 9: MANILA to SINGAPORE
AAMC 123a - Green Cachet

Registered, Manila to Singapore via Pan American Airways Boeing 314 "California Clipper", with special green circular cachet, censored in Singapore. Very decent closing price of US$ 26.89 (eBay) considering that this is a commercial cover. Majority of the covers carried on this flight on PanAm corner card envelopes.