Caption on leaf [2]: Clarissimo viro D. Ioanni Schonero, vt parenti suo colendo, G. Ioachimus Rheticus, S.D.

Imprint from colophon.

Unnumbered leaves, printed on both sides.

Initial; side-notes.

"Ex musaeo nostro Varmiae ix Calend. Octobris, anno Domini M.D.XXXIX Henricus Zeellius lectori s." (caption title): leaves I3 recto to I4 recto.

Signatures: A-I⁴ [chi]².

Errata: leaves [chi]1 verso and [chi]2 recto.

Dibner Library. Heralds of Science (1980 ed.), no. 2

SCDIRB copy 39088016713521 is no. 1 in a volume of of ten works bound together, with binder's title: Schoener tracts.

SCDIRB copy has bookplate: Burndy Library ... gift of Bern Dibner. With ink-stamp: Herald of Science no. 2, in Grolier exhib. 1958 ("One hundred books famous in science").

SCDIRB copy is described as formerly belonging to Johann Schoener (with "Schoener's copy" stamped in gold on the slipcase spine).

SCDIRB copy has a contemporary blind-tooled alum-tawed pigskin binding with raised bands; title inked on spine and fore-edges; and vellum manuscript binder's waste visible inside front and back covers. Housed in a modern two-part red cloth portfolio and slipcase, with gilt-lettered red morocco leather spine.

SCDIRB copy has mounted on inside of portfolio: a Deutsches Reich Generalgouvernement 1+1 Zloty red and white engraved postage stamp with portrait of Copernicus, for the 400th anniversary of his death ("24 Mai 1543-24 Mai 1943").