Manufactured from 1953 to 1955 by Marcelo Claramunt Tartera of Igualada, Barcelona, these were light motorcycles powered by 125cc Hispano Villiers engines housed in frames sourced from Julio Fusté.
Production was taken over by Fusté in 1955, and the name was changed to Delfin. The change of name was possibly because, as one writer suggests, the quality of all components apart from the engine was poor. However, another writes that the Olimpic was "very robust".
Sources: Wikipedia, OTTW.
N.B. There were several firms which used the name Olympic.