Japanese Hi-Mound BK-100 Semi-automatic Telegraph Key
The BK-100 is also called the "Coffin Bug" because of its rectangular shape and cover. Manufactured 1953-1968 by the Hi-Mound Electro Co., Shizuoka, Japan
See it in action aboard the SS Red Oak Victory at https://www.youtube.com/watch?v=_0bAcNEcTZo
Видео Japanese Hi-Mound BK-100 Semi-automatic Telegraph Key канала KP4MD
See it in action aboard the SS Red Oak Victory at https://www.youtube.com/watch?v=_0bAcNEcTZo
Видео Japanese Hi-Mound BK-100 Semi-automatic Telegraph Key канала KP4MD
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