A doubled die is not an error, it is a variety with many, many coins struck until the die is retired. Your coin shows all the signs of a...
Switzerland 5 Francs 1932 [ATTACH] [ATTACH]
Germany 1977 [ATTACH] [ATTACH]
Hungary was already before your post
Hungary 1997 [ATTACH] [ATTACH]
61 DMPL A lot going on in the main focal area on obverse, but a lovely contrast between field and devices. Nice coin, nice find well done
One more for your total nice coin
The T represents Tabora Emergency Coinage https://en.numista.com/catalogue/pieces11912.html
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