Country of Origin: United States of America
Dimensions:
3-D Test: 66 x 13.3 x 27.9cm (26 x 5 1/4 x 11 in.)
Materials:
INSTRUMENT - WHITE BRASS
Physical Description:
Table mounted plotter, eyepiece, plotter arm scaled on top 50 to 20 "four-tenths knot for altitude in hundred feet", scaled on bottom 5-2- "one-tenth knot for altitude in hundred feet".
