Signedplate on base: ACME / for amplification / REPRODUCER / DOUBLE FREE EDGED CONE / TYPE K1 / ACME APPARATUS CO. / CAMBRIDGE, MASS., U.S.A. / PATENTS PENDING
printed on side of box: ACME REPRODUCER / FREE EDGED CONE TYPE K1 / ACME APPARATUS CO. / CAMRBIDGE, MASS. / ACME ~ for amplification
Inscribedwritten on box: To E C BROOK(missing) / C/O ASHLAND ST. (missing) / MALDEN / MASS.
FunctionTransduces electrical signals into sound
Historical Attributesbrand new condition, has instruction/advertising booklet , in original box
ProvenanceE. C. Brooks, Malden, MA; purchased by David P. Wheatland, Topsfield, MA.
Related Workshttps://www.radiomuseum.org/dsp_treffer.cfm