![MUELLER, Johann Regiomontanus. Problematum astronomicorum et geometricorum sectiones septem ..., Basle: Heinrich Petri & Peter Perna, 1561. 2°, numerous woodcut illustrations and diagrams, woodcut initials (printer's device scored in ink with paper slip pasted over it, causing a few holes, 3 words of the imprint scored, some browning and spotting) [bound with:]](https://www.christies.com/img/LotImages/2000/CSK/2000_CSK_08708_0198_000(125408).jpg?w=1)
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MUELLER, Johann Regiomontanus. Problematum astronomicorum et geometricorum sectiones septem ..., Basle: Heinrich Petri & Peter Perna, 1561. 2°, numerous woodcut illustrations and diagrams, woodcut initials (printer's device scored in ink with paper slip pasted over it, causing a few holes, 3 words of the imprint scored, some browning and spotting) [bound with:]
MUELLER, Johann Regiomontanus. De triangulis planis et sphaericis libri quinque..., edited by Daniel Santbech, Basle: [n.p., n.d. but 1561]. 2°, woodcut diagrams and initials, tables (some browning, lower margin wormed) Adams R281.
2 works in one volume, early vellum, lettering-piece and 3 paper labels (soiled).
MUELLER, Johann Regiomontanus. De triangulis planis et sphaericis libri quinque..., edited by Daniel Santbech, Basle: [n.p., n.d. but 1561]. 2°, woodcut diagrams and initials, tables (some browning, lower margin wormed) Adams R281.
2 works in one volume, early vellum, lettering-piece and 3 paper labels (soiled).