A very rare Bon from the commemorative series, issued dated January 20, 1943 to commemorate the 80th anniversary of the January Uprising.
Type noted in the Lucow collection, under number 930 with a rarity rating of R7, but there with signatures and number.
The present one in an unissued version, not described in the catalogs of both Lucow and Podczaski.
Recommended.