MAESTRO (L. A. CHASTON)

Maestro (L. A. Chaston) was manufactured by L. A. Chaston, the distributor is unknown. Currently there is 1 documented model.

Maestro had originally been a brand of gramophone, and then radio, for La Gloria Gramophones in the early 30's. 

L. A. Chaston seem to have used it in the 50's.  They do not appear to have been particularly widespread, although one model was advertised in the Radio and Electronics trade publication for January 1951.

1 Documented Maestro (L. A. Chaston) Model
IMAGEYEAR MODEL CODE VALVES BANDS
1951 Maestro (L. A. Chaston) model 503 5  Broadcast