This is the Hi-Mound HK-708, a key in the Hi-Mound tradition.
It uses nylon bushings as bearings for the lever, which gives it a unique feel.
The bearing drag can be adjusted for the best feel.
CONTACT- 2.5f SILVER
L - 150mm
H - 50mm
with no shroud
HI-MOUND Electro Co. (Takatsuka), 3651 Shirowa, Omaezaki-shi, Shizuoka-ken 421-0602, Japan.
Precision und releable telegraph equipment, mainly used by HAM radio operators.
Founder and President Mr. Takatsuka. Still in buisness.