ISTC does not list this as being in the Dibner Library, but in the Burndy Library.
Woodcut title (leaf a1 recto).
The Epitoma was begun by Georg von Peurbach and finished by Regiomontanus; the editors for this edition were Giovanni Abiosi, Caspar Grossch and Stephanus Roemer.
Imprint from Goff.
Incipit (leaf a2 recto) reads: Cl. Ptolemei Alexandrini Astronomo[rum] principis [Is megalin sintaxin] id est In magnam constructione[m].
Colophon (leaf p7 verso) reads: Explicit Magne compositionis astronomicon epitoma .... Opera quoq[ue] [et] arte impressionis mirifica viri solertis Iohannis Ha[m]man de Landoia, dictus Hertzog, felicibus astris expletum. ... In hemispherio Ueneto, anno salutis 1496 currente, pridie calen[das] Septembris Uenetijs ...
"Some copies contain the text of a 2-leaf letter of Johannes Baptista Abiosus, dated 15 Aug. 1496, and inserted between a1 and a2" --Goff; this letter not present in Dibner library copy.
Signatures: a10 b-n8/6 o6 p8.
Leaves printed on both sides; 48-49 lines per page.
Final leaf (p8) is blank; wanting in Dibner Library copy.
Initials; printer's device on leaf p7 verso.
Woodcut ill. of Ptolemy, Regiomontanus and an armillary sphere, inside an ornamental border, on leaf a3 verso; "The xylographic portrait of Regiomontanus is considered authentic" --Heralds of science.
Leaf a3 is reversed and misbound before leaf a2.
Extensive ms. annotations with mathematical diagrams throughout, in an old hand.
Excised leaf from an old printed ecclesiastical text used as front free endpaper.
Bookplate: Burndy Library ... gift of Bern Dibner.
Old limp vellum binding; in modern green drop-back box.