#PHC46 1933 2c Philippine Islands Airmail, green, unwatermarked, perf 11 MSRP: Was: Now: $1.75 - $26.50
#PHC18 1928 2c Philippine Islands Airmail, green, unwatermarked, perf 11 MSRP: Was: Now: $2.35 - $4.00
#PHC48 1933 12c Philippine Islands Airmail, orange, unwatermarked, perf 11 MSRP: Was: Now: $1.35 - $2.75
#PHC49 1933 20c Philippine Islands Airmail, yellow, unwatermarked, perf 11 MSRP: Was: Now: $0.95 - $2.75
#PHC19 1928 4c Philippine Islands Airmail, carmine, unwatermarked, perf 11 MSRP: Was: Now: $1.90 - $2.75