Telephone Advertising Covers. Balance of 20 illustrated ad covers, 1880-1890's; an array of products and companies including Victor Telephone Manufacturing Co. - Chicago, Ill., J.R. Holcombe & Co. - Mallet Creek, O. (3 different), Gilliland Telephone Company - Chicago, Ill., Boston & Northern Telephone Co. - Salem, Mass., National Telephone Manufacturing Co. - Boston, Mass., etc.; some flaws, Very Fine overall. Estimate  $400 - 600. $0 (Image)