[Ex libris] 35 items: (1-4) Erik Zilverberg (b. 1941). "Ex libris J. v. Velzen".

Etching and aquatint, 1990, 6 x 10 cm., four signed copies: "Proefdruk 1", "Proefdruk 2" (handcoloured) and the first 2 copies of the final edition of 50 copies. With accompanying letter with explanation of the ex libris from 1990 by the author to Jaap van Velzen, with postscript: "Hoe vindt [sic] je mijn kleuren grapje?".

(5-35) Peter Achttienribbe (b. 1942). "Ex libris Jaap van Velzen". Etching, 2007, 10 x 7 cm., 31 signed and numbered copies from the edition of 100. With accompanying note "Met hartelijke groet, Peter" and with letter from 2007 regarding the ex libris. Added (36): An etching by Erik Zilverberg printed in 20 copies, 19.5 x 15 cm. (total 36).