A very simple little model with few variants as only in the range for some 5 years. The small box under the rear tray can be in gold or plain black, black being the first issue. Some models have the front cab window bar missing but this was as a result of the 'tumbling' process to clean up the castings.

The biggest variant concerns the wheels which were normally grenodised (1) but on the last run, presumably because of die wear, they were fitted with black plastic wheels (2). The first issues had crimped axles with later runs having riveted versions. For some reason these are particularly hard to find as well as the B type box.