#PHC551936 6c on 12c Philippine Islands Airmail, red orange (V)
$0.70- $1.00 #PHC561936 16c on 26c Philippine Islands Airmail, blue green, (Bk)
$0.85- $1.25 #PHC501933 24c Philippine Islands Airmail, deep violet,unwatermarked, perf 11
$1.00- $1.40 #PHC521935 10c Philippine Islands Airmail, rose carmine,unwatermarked, perf 11
$1.00- $1.50 #PHC571939 8c on 26c Philippine Islands Airmail, blue green
Call for Availability #PHC511933 32c Philippine Islands Airmail, olive brown,unwatermarked, perf 11
$1.75- $2.50 #PHC541936 2c on 4c carmine, Philippine Islands Airmail
$0.65- $1.00 #PHC461933 2c Philippine Islands Airmail, green, unwatermarked, perf 11
$1.40- $2.25 #PHC491933 20c Philippine Islands Airmail, yellow, unwatermarked, perf 11
$1.00- $1.40