35) Durand Constable and Edison, Aug 1918, Phono
Ediphone.
26) Ediphone Competition Bulletin, #179, April 1931.
33) Memo Constable, Development Work for Ediphone, lov
1919, Phono.
24) Durand Gilmore, Mar 1907, Phono l.L.a.
23) 1909, Phono Edison Business Phonograph.
34) Ediphone Buyers Guide, Warsaw collection.
. Mar 1925,
1925 Radio.
31) Experimental costs the Ediphone rose from around $9,000
p.
organization. This was the cost of
one experimenter, half time for assistant Works engineer,
and skilled mechanic.in 1920. Meikle, Twentieth Century Limited Industrial Design in
America 1925-1939 (Philadelphia: Temple 1979), 82. 1913/1914 $15,000 p.P.
29) Rational Ediphone Sales Conference, Jan 1925, D7
Phonograph.XI
22) Miller reminiscences, lew York Public ledger.
28) Charles Edison Division Managers, Sept 1917, TAE Inc.
36) J.
27) Buyers Guide, Warsaw collection .
25) Dyer Durand, April 1910, Phono, ph. Ediphone minutes, experimental lists,
accounts. Commercial
dept.
30) 78, Ediphone Business, May 1918, TAE Inc.a.
32) Durand Edison, Jan 1918, Phono Ediphone
