Signedon dial: PATTERN NO. 190/VOLTS/A.C./JEWELL/JEWELL ELECTRICAL INSTRUMENT CO./886417
Inscribedon box side: GENERAL ELECTRIC/MINIATURE INSTRUMENT/TYPE 8DW MODEL 46VAR5/RATING 150 Volts/REQ BPWR-19829/REMARKS CG# 22269/Anti-Glare Glass/SCHENECTADY, N.Y./MADE IN U.S.A.
on box top: Contract No. NXss-15910/1 Modulator Indicator/348/Navy Type No. -22269/G.E. Ref. P-7761557-P6/General Electric Co., Bridgeport, Conn.
ProvenanceFrom William James Hall, Harvard University.