- Telephony Class Senior B Class

Not Stated, Not Stated, c1910 . Cloth. A very scarce educational manual on the topic of telephony, profusely illustrated with diagrams, some of which are folding plates. A very scarce educational textbook for a telephony class, in particular 'Senior "B" Class&apos. This profusely illustrated work provides a comprehensive guide to telephony, the field of technology surrounding the development and application of telecommunication services.Divided into twelve papers, this informative work provides detail on areas including test boards, applied magnetism, measuring instruments and electro-magnetic induction, among many others. Illustrated throughout with vignette diagrams and full page illustrations to accompany text, with two folding plates. Bound in full cloth. Externally, very good, with light bumping to the extremities. The odd mark to cloth, with a larger mark to the front cover. A little offsetting and age toning to endpapers. Internally, firmly bound. Pages bright and clean with the occasional handling mark. Very Good . Ill.: Not Stated. Very Good .

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