Craenhals : Luc Tremplin, plates no. 1 to 46 (complete story) in Indian ink and white gouache highlights from the episode "Opération Zéro" published in the Tremplin newspaper (no. 21, May 22, 1964 to no. 14, April 2, 1965). The author collaborated with Endry on this adventure. Color indication tracings in pencil for plates 1 and 4 to 46 are included. Dimensions: 46X +/- 32 x 42.5.

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