USNM 604397 (S-K 544). Figure 92.
Figure 92
The reverse side of this plate is fitted with the rather rudimentary wire fasteners similar to those on shoulder-belt plates of the 1812-1821 period. In other respects the specimen is identical to the preceding ones of 1839.
¶ The 1839 regulations specified a bayonet-belt plate "round, brass, with eagle." The 1841 ordnance manual was more exact, specifying the plate to be "brass, circular, 2.5 in. diameter, with an Eagle," and then stating: "The bayonet belt is about to be discontinued ..." Although not so authorized at the time, this plate, so familiar during the Civil War period, was switched over to the shoulder belt supporting the cartridge box. Such plates were manufactured in great quantities and in many variations of the original design by a dozen or more contractors during the period 1861-1865.
CARTRIDGE-BOX-BELT PLATE, 1839
USNM 60338-M (S-K 94). Figure 93.