Hints from the manufacturers of the raw material of saltpetre into gunpowder, oil of vitriol, &c. &c
Publisher: publisher not identified
Published: 1793
Place of publication: London?]
Language: eng
Subjects: Saltpeter; Early works to 1800; East India Company
Notes: Caption title.

Signed and dated at end: Edmund Hill, Gunpowder Office, Savage Gardens, May 20, 1793.