Standard SR-F21
A dark green and a grey SR-F21 hanging out together. This model was also available in vermillion (red), as shown below. The reflection on the tops of the cabinets gives a glimpse of the slight wave in the thick, thermosetting plastic that lends a primitive air to the overall construction. It's a good plastic that looks and shines well. (The cabinet is likely made from urea-formaldehyde, not dissimilar to Plaskon or compounds of that sort.)