Released in two weights in 1904 [Wetzig 1926–40] or 1905 [Reichardt 2011]. Sold by Gallico as Serie Egeria [Reichardt 2011]. Reworked in 1967 as Charleston.
See Radius FG (Fontgrube, 2022) for a digital interpretation.
Not to be confused with Schelter & Giesecke’s Radium.
Radium (Ludwig & Mayer) in use
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