A very rare artist scetch book with drawings for thangka

Description:

Tibet, ca. 17th/18th cent.
Je ca. 18,5 x 13 cm
48 pages with fine preliminary drawings and sketches in ink and a little red in a textile cover. See the scans online for a detailed description of the individual illustrations.
Joachim Baader Collection, München collected before 1980
Compare a group of few Newari Artist Sketch pages dated to the 15th cent. ublished by Tenzing Asian Art 2025