Félix Hélie - Expériences d’artillerie exécutées à Lorient - 1847

[HÉLIE Félix]. Artillery experiments conducted in Lorient using ballistic pendulums.
Paris, Royal Printing Office, 1847; octavo, full vermilion morocco, smooth gilt spine decorated with fillets and scrollwork framing the covers, crowned and gilded AO monogram in the center, pale blue silk endpapers, gilded edges, modern case.

1 f. bl., XII, 120 pp., 1 f. bl.

Magnificent example of a present, to Antoine d’Orléans, Duke of Montpensier (1824-1890), son of Louis-Philippe, who was appointed by the latter as marshal of camp and artillery commander at Vincennes on September 11, 1846, that is, one year before the publication date of this treaty.

The work, interspersed with calculations, mathematical formulas, and tables, studies the role of the ballistic pendulum in determining the velocity of shells.

An engraved board containing 5 geometric figures.

A bit tired coins.