Usage: This is a student grade weight set, used for
routine mass determinations in conjunction with an analytical
balance. The quality of this set would indicate its intended
use in beginning chemistry or physics courses. Such sets might
also find use commercially for routine work.
An early description of Weights and their use is provided
below:
Weightsin Krayer, The Use and Care of a Balance
(1913)
Description: Class XX 50 gm - 1 mg weight set (Style
No. 720) in a 5 3/4 x 3 3/8 x 1 1/2" mahogany box. The set
is complete with: a brass forceps (replacement), gram weights
of lacquered brass, fractional weights of non corrosive metal
between 500 and 50 mg and aluminum for the smaller weights. There
is a paper sticker on the bottom of the box:
CLASS XX - WEIGHTS
Style No. 720
50 Gm to 1mg
CHRISTIAN BECKER, INC
92 Reade St., New York
The polished mahogony box is has a one piece solid bottom
with black velvet lined weight holes, unlined forceps slot, and
a Bakelite tray for mg weight. The lid is of mitered corner construction
lined with black velvet. The box hardware is brass and a brass
tag is attached to the bottom right end:
CHRISTIAN BECKER
NEW YORK, N.Y.
Research: A similar set, but Class S2 instead of XX,
is shown as item 12650, pg. 79, BKH Catalog No 40, 1940.
