Manchester, New Hampshire and Long Island City, N. Insuline Corporation of America. Binder (oblong 4to) with 5 double sided grammophone records, 87 RPM format (labels detached and/or missing) containing 10 lessons on how to conduct Morse Code on telegraph sets. Also included is the instruction booklet, small 8vo, self wraps, 32 pages. The last page is an advertisement for various code sets manufactured by ICA (Insuline Corporation of America). A nice throwback to the early days of communication when young men were busy in the garages and attics learning Morse code. Very Good. Various.