Non-issued 4 pf Hindenburg is the most valuable stamp of all Slovenian 1945 provisional issues. Only 15 sheets were overprinted. Its catalogue value is 500 EUR while its current market value is around 200 EUR. Therefore, you should be suspicious when you see this...
1945 Maribor provisional issue, 4 pf Hindenburg, forgery on sale.
Genuine above and forgery below. A very primitive product.
UPDATE: This forgery was sold for $52. The buyer probably thinks he paid a low price for the rare stamp, but now he has a worthless fake in his collection. My advice is: request a certificate!
