Stampdesc Colombia, 1c-blk-unissued

desc_issuer: Colombia
desc_denom: 1c
desc_color: blk
desc_unissued: 1

Used by 1 overprinted stamp:
Colombia postage 1901 1c blk issue=1901a ovpt=x oc=blk on=1c-blk-unissued

Description does not match any stamp types!