desc_issuer: Guatemala desc_denom: 30c desc_color: grn desc_denom2: 30c (# 11509) Used by 1 overprinted stamp: Guatemala airmail 10/21/1931 30c grn ovpt=AEREO//INTERNACIONAL//1931 oc=blk on=30c-grn Not used by any images. Matches 2 types: Guatemala postage 1/7/1929 30c grn issue=1929 d=Aurora Park unwmk Guatemala airmail 10/21/1931 30c grn ovpt=AEREO//INTERNACIONAL//1931 oc=blk on=30c-grn |