Drypoint, with red ink, white correction fluid, and pencil additions
Smooth, wove paper
plate: 10 15/16 x 8 7/16" (27.8 x 21.5 cm); sheet: 15 9/16 x 12 5/8" (39.5 x 32 cm)
"LB" lower right margin, red ink.
Verso: "father Robert. / Alain, Jean Louis, Michel." lower center, pencil, artist's hand; "Sign en choeur. with (crossed out) using a tuning / fork / diapason tuning fork." bottom center to lower right , red ink, artist's hand; sketch of tuning fork, lower center sheet, pencil, artist's hand.
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