1921 book offers early look at RADIO! Paragon set, etc.

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NOTE: If you have less than 10 feedbacks, please contact me before bidding. USA AIR is $4, and most other countries via Global Priority Air is $10. This is a very fun book from way back in 1921, about 1000 pages on a number of interesting topics, perhaps the Radio section is one of the best! This section is about 100 pages long, and takes a very early look at many aspects of radio principles, with some great early sets, like a Paragon transmitter and a Neutrodyne set, plus Grebe shortwave and much more. Check out the great pictures! This book is a sort of "modern engineering practices" book, and also covers: 1. A.C. Principles 2. Electroplating 3. Electric Vehicles 4. The Telegraph 5. The Telephone 6. Automatic Telephone 7. Motion Pictures (briefly) and 8. Radio, which is a very long section. This is a big book, in good, solid shape for the age. Has a sort of pliable cover, don't even see any underlining! A very well conditioned book for being 86 years old! USA shipping is $4.50 for Air; $11 overseas for Air to most countries. No Reserve! Check, money order or my favorite, Paypal. All sales final unless I misdescribe something. Not responsible for items once they leave , but they seem to make it 99.6% of the time! Overseas is fine. Check my feedback, the buyers are happy. For what it is worth, I have owned a vintage, read more