Possible plate flaw on Brazilian 1961 Ouro Preto stamp
During the long weekend I finished organizing my collection of Brazil,and here’s one particular item I’d like show up. It’s a 1961 commemorative for 250th anniversary of city of Ouro Preto. But as usual with items I display, there’s a twist: notice the crack on left side of the nominal value I’m not sure if this one is a plate flaw/variety, or just some print abnormality (caused by dust or similar).

1961 Brazil. 250th anniversary of city of Ouro Preto. According to Michel, the stamp was printed using photogravure.
Either way, small EFO (Error, Freak, Oddity) finds like this make worldwide stamp collecting highly addictive.
PS. Here’s a small non-philatelic tidbit: The name of the city – Ouro Preto – is Portuguese and means literally Black Gold. And yes,there’s a fascinating story behind it all with real gold that was black (colorized due to iron oxide on it). It was found on late 17th century at area that is currently Ouro Preto; it caused a gold rush that gave birth to city.
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Interesting. Looks like it might have been a hair on the plate.
@Bruce J… Yep. Could be hair or similar. Likely it’s something temporary as I haven’t come across anything similar (yet).
Well yes Keijo…literally is black gold, but I was thinking the other connotation used in Sudamerica for that: black Gold = Oil (petroleum)… and they give usually that interpretation
Ouro Preto = Black Gold = Oro Negro = Oil…but this is only what I think…you almost always are right!…best
@Fred… True, black gold usually refers to oil / petroleum. But in this specific case there was real black gold involved.
Somewhat bit off-topic… Jules Verne’s novel “Eight Hundred Leagues on the Amazon” makes a pretty good read for anyone interested of what life in 18/19th century Brazil might have been.