Does anyone know the story behind this series? They use the same couplers as the Big Big Train and, from the photo on the wagon boxes, the similar red track.

The wheel sets appear to be similar but the flanges are deeper. This means it does not run on fine-scale (e.g. Lima) track.
The long wheel-base means that they are reserved for 2′ radius curves, and for storing small spare parts on the work table.
Rummaging around in some old crates yesterday I found that I had kept the boxes. Here is a scan:

Note the price. Adjust for 48 years inflation!
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This topic was modified 4 months, 1 week ago by
TomBTR. Reason: spelling