Levin Acoustic Steelstring model 135. 1968.

Specifications: Non-cutaway. Body width: ? mm. Body length: ? mm. Body depth: ? mm. Fingerboard width: ? mm. Scale length: 595 mm. Spruce top with undetermined bracing. Birch back & sides. Single-bound top with soundhole monogram. Unbound back. Mahogany neck with non-adjustable T-shaped duraluminum truss rod. Unbound mahogany fingerboard with pearl dot inlay. Mahogany bridge. Nickel plated tuners with white plastic buttons. Matte natural finish. One year warranty. Introduced: ca 1968 ca 1969: Also available with nylon strings as Model 139 Junior. Latest known example: 1971 .
Model info here: