Description
READS:
Thomson Astatic Ammeter
Patented Apr. 16, '95 Nov. 3, '96
Oct. 17, '99 June 10, 1902
General Electric Co.
Schenectady, N.Y.
U.S.A.
Size is 3 1/2" x 9 1/2"
Brass top plate
Heavy
I know there is supposed to be one at the New York Transit Museum.
Looking for a value.
Thank you~
