1904-06 Marconi Type 100 Spark Key * Marconi Wireless Telegraph Co. * London


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Well-made, very uncommon Marconi spark key dating to around 1905.

The key is identical to the one pictured in Volume 14 of the AWA Review (Spark Keys: The Interplay of Wireless History and Technology — Kleinman, Kreuzer, et al), but without a condenser embedded in its base.

The key’s wood base is mounted on a secondary base made of cast iron.

The key is unsigned, but it has been conclusively authenticated as a Marconi 100 by Marconi specialist Jim Kreuzer, co-author of the aforementioned AWA review article.

Measures approximately 6″ x 4″ x 4″.


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