A very rare size, 3 inches long when folded. Beautifully engraved! Signed N. BION A. PARIS. The other side is marked DEMI PIED DE ROY. (Half the foot of the king) Note the 17th century spelling of the word 'king.' Nicolas Bion, born 1652, was appointed engineer to the king of France in 1681, and was a maker of fine mathematical instruments.
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A very rare size, 3 inches long when folded. Beautifully engraved! Signed N. BION A. PARIS. The other side is marked DEMI PIED DE ROY. (Half the foot of the king) Note the 17th century spelling of the word 'king.' Nicolas Bion, born 1652, was appointed engineer to the king of France in 1681, and was a maker of fine mathematical instruments.