desc_issuer: El Salvador desc_issue: 1916 desc_denom: 50c Used by 2 overprinted stamps: El Salvador postage 1920 5c sl issue=1920 provisional dt=National Theater oc=vio on=issue=1916-50c unwmk El Salvador official 1916 50c sl issue=1916 official dt=National Theater ovpt=OFICIAL oc=vio on=issue=1916-50c unwmk Not used by any images. Matches 1 type: El Salvador postage 1916 50c sl issue=1916 dt=National Theater unwmk |