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This CD is a complete source of information for all those interested in telegraph keys from beginner to avid collector. It explains the history and technology of telegraph keys and even gives their current values. Designed for easy, convenient, fast access to over 7,000 photographs and a vast array of descriptions, prices, books, maps, vidoes and lists.

Also available: Perera's Telegraph Collectors Guide

CD-ROM. Second edition. © 2007, Tom Perera Ph.D