on Dec 12, 2016
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17.1 cm long antique straight bone rongeur, listed among the group of instruments recommended by Dr
2.9 cm across the closed handles (as in photo #9), 8.5 cm when fully open
Handles are 17 mm maximum width
Jaws are 4 mm wide
final 8.5 cm of outside handle surface has a brushed finish, apparently manually applied individually to each instrument made
This instrument thus dates pretty clearly to 1900-1910, though the brushed outer surface of some bone instruments was being used by French instrument makers by 1870
All 3 pieces (two halves and the spring) are impressed with numeral 17, to assure correct assembly when there was more than one size of a similar instrument being made in the same factory
Adolphe Collin was a 19th century expert surgical instrument manufacturer in Paris
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