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This model is the Dinky 270-G-2 AA Patrol Motorcycle and Sidecar in yellow, tan and black.
The model is a two-piece metal casting with the motorcycle body molded with representations of the engine, handlebars, headlight, front and rear mudguards, frame, and petrol tank in black, and rider in tan. The sidecar casting is molder with the service box (complete with AA decal) in yellow, and rear mudguard in black.
There is no baseplate but the underside of the sidecar carries the legend "Meccano, Dinky Toys, Made in England" on 3 lines.
The three wheels are all grey plastic, mounted on domed axles.
This item was issued between 1959 and 1964.