N. JACOBSENs ELEKTR. VERKSTED A/S ====OSLO====
A superb Scandinavian long arm key with the classic overhead rear contacts, c1928.
Jan / SM5LNE has one of these keys and I agree with him - it is a joy to use, and quite a rare key too !
N.Jacobsenís Electrical Workshop was established in Oslo in 1891. This company made, amongst other things, radios and relay protection equipment. The company moved to Hokksund in 1972, where it now operates under the name Jacobsen electro.
N. Jacobsens Elektriske Verksted A/S