WIPA block with envelope, 1933, fibre paper, mint, verified

WIPA Block 1933 with original envelope – an icon of Austrian philately.
The famous WIPA block from 1933, issued for the Vienna International Postage Stamp Exhibition, is one of the most sought-after classics in Austrian philately. This specimen is offered in its original envelope – a rare combination that further emphasises its historical and collector's value.
An exceptional piece that should not be missing from any high-quality collection.