lithograph/paper, 20x16.5 cm, signed and dated p.d.: JTchórzewski 63.
work made for the portfolio "Confrontations" 1963 published by the Gallery "Krzywe Koło", issued in an edition of only 250 pieces and containing works of the most interesting artists cooperating with the gallery
Cf. Janusz Zagrodzki, Krzywe Koło Gallery (1956-1965) Works on paper - exhibition catalog; Radom 2015, p.200, item 91.