De la Pirotechnia

The page shows significant physical damage where the top layer of paper has been torn away in large sections. This reveals the internal binding material and fragments of older "waste paper"—printed scraps from unrelated books used by the binder to strengthen the spine.

4 — 1115

Haym 1512. Volume 1. 11 A reference to Nicola Francesco Haym’s "Biblioteca Italiana," a famous 18th-century bibliography of Italian books.

Hoover Collection 130 (this edition) Refers to the collection of Herbert Hoover, 31st U.S. President and mining engineer, who owned an extensive library of metallurgical texts.
Complete collection # 733
Duveen 79 Refers to Denis Duveen’s "Bibliotheca Alchemica et Chemica," a standard bibliography for alchemy.
Dibner, Heralds 38 Refers to Bernice Dibner’s "Heralds of Science," a list of the 200 most important books in the history of science.
Harvard 66 Likely a reference to the Harvard University library catalog of Italian 16th-century books.

471 Handwritten in red ink with three horizontal strike-through marks.

LB 10.5 JJ / M 83 Library call numbers used for shelf organization.