Manuel Mari Morante, EAR-37 (The first usuary for this call in 1926).
Mari Morante was a radiotelegrafist from Finisterre Marconi Station in Spain.

RT4 was a creation from Manuel Mari Morante
Manuel's wife in photo!

In 1928 EAR-37 was adjudicate to Emilio Rotellar in Zaragoza.

Photos and info courtesy of EA1CIU