Joseph (Józef) Hecht (Polish, 1891-1951) Reclining polar bear; Northern ducks. Circa 1930. Burin. 168 x 265. Very fine and unique proof on Montval laid paper of the two subjects engraved head-to-tail on a single copperplate (the 1st described by Plumart and Tonneau-Ryckelynck under no. 219 but not reproduced as never encountered, the 2nd an unfinished variant of their no. 152), signed in pencil. Full margins.