Are you interested to the tools to make telegraphy? Here you can find a lot of interesting information that concern the telegraphy, keys, handicraft keys. It skims through to the left here the pages and good reading.
MARCONI PS 213 A
Marconi radiotelegraphy key model AS N. 300A was built as the years 1920 1925 .
Under the first one it replies sort to hand of the famous BUG McElroy 1938 standards, it replies in use, the details to the inside the WEB page.
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