or lancet. Lancet is brass and has an unusual boot
shape. The short lever release operates a catch at the very top of the
lancet casing. The large blade has a guard that is regulated by a screw on
the side. Purchased 1976. Lancet: L 35 mm, W 24 mm. Case: L 68 mm, W 33
mm, H 20 mm. Neg. 76-9114 (BW). NMHT 316478. (Figure 46.)

Spring lancet, late 18th-early 19th century. Unusually shaped large brass
and steel spring lancet, nicely decorated and engraved with the name "M.
A. Prizzi." Lancet is set by a slide cocking lever on the facing side and
released by another lever. A brass plate at the top of the lancet can be
moved back and forth by a screw in order to regulate the depth of cut of
the lancet blade. Lancet comes with a spare blade. Purchased 1975. Lancet:
L 86 mm. Neg. 76-7763 (BW, CS). NMHT 320033.06. (Figure 45.)

Spring lancet with case, 19th century. Lancet is brass with a steel lever
release and has a zig-zag decoration on the front and back panels. Case is
covered with brown leather and lined with chamois and has a small basket
of flowers stamped on the top. Purchased 1976. Lancet: L 42 mm, W 19 mm.
Case: L 71 mm. W 34 mm. H 19 mm. Neg. 73-4236 (BW & CS). NMHT 321636.01.
(Figure 6.)

Spring lancet, 19th century. Lancet is engraved "F. D." on back (see NMHT
302606.008). Analysis by the Conservation Laboratory shows that the lancet
is made of brass composed of 70% copper and 30% zinc plated with a
tin-lead alloy. Most of the plating has been rubbed away. The blade,
cocking lever, and release lever are of iron or steel. Purchased 1976.
Lancet: L 43 mm. W 21 mm. NMHT 321636.02.

Spring lancet with case, 19th century. Lancet is brass and has a brass
lever release. Engraved "Goulding/New York" (manufacturer). Case is made
of wood, covered with black leather and lined with light brown plush. It
has a tab closure. Lancet and case were not originally a set; the case was
designed for a larger lancet. Donated by the American Pharmaceutical
Association 1970. Lancet: L 40 mm, W 20 mm. Case: L 74 mm. W 38 mm. H 12
mm. NMHT 321641 (M-13060).

Spring lancet with case, late 19th century. Silver lancet with a button
release and a border decorating the top and edge. Button release lancets
were sold in the late 19th century for slightly more than lever release
lancets. Analysis by the Conservation Laboratory shows that the silver is
not sterling but a silver-copper alloy containing twice as much copper as
sterling silver. The