Stampdesc Natal, 6p-mar&blgrn-unissued

desc_issuer: Natal
desc_denom: 6p
desc_color: mar&blgrn
desc_unissued: 1

Used by 1 overprinted stamp:
Natal official 1904 6p mar&blgrn ovpt=OFFICIAL oc=blk on=6p-mar&blgrn-unissued

Description does not match any stamp types!