Signedon dial of meter: D-C. MILLIAMPERES/GENERAL ELECTRIC/U.S.N. TYPE CG-22057/TYPE DW 41/MODEL 8DW41/N.P.60984/MADE IN U.S.A.
Inscribedon top of box: Contract No. NXss-15910/1 Milliammeter/340,344/Navy Type No. -22057/G.E. Ref. P-7761557-P1/General Electric Co./Bridgeport, Conn./4
on side of box: GENERAL ELECTRIC/MINATURE INSTRUMENT/TYPE 8DW/MODEL 41ADR14/RATING 50 MA DC/REQ. BPWR 19826/REMARKS X [?]/SCHENECTADY, N.Y./NP-97629 MADE IN USA
ProvenanceFrom William James Hall, Harvard University.