Stampdesc Natal, 3d-ultra-unissued

desc_issuer: Natal
desc_denom: 3d
desc_color: ultra
desc_unissued: 1

Used by 1 overprinted stamp:
Natal postage 1872 3d ultra issue=1870 ovpt=POSTAGE//POSTAGE(vert) oc=blk on=3d-ultra-unissued

Description does not match any stamp types!