This Hong Kong made model has a metal body and base, plastic interior, windows, and lights on top, and a plastic boom.
a. white, metal base, clear int., windows, and lights, yellow boom, orange, yellow, and black stripes with “Mark’s Phone Co.” on sides, bw. $8 – 15
a2. white, as a, Mal. 8 – 15
a3. white, as a2, no “Mark’s” on sides (1985) 15 – 20
a4. white, as a3, Mex. (1986) 20 – 35