Kingswell Street
Bassett Lowke were recorded as building what appears to be a gauge 2
layout in their workshops at Kingswell Street, Northampton in 1908:

This image appears in 'The Young Engineer' written by Hammond Hall
and published in 1908. Another image of the same layout was
found in a box of glass negatives which accompanied Mr
Albert Franklin's models, recovered and passed on to us by Mr
Phil Nunn.Here's a positive print from the negative:

In this image the station name
'Kingswell Street' can just be made out while a poster on the
retaining wall reads 'Alight here for Bassett Lowkes'.
Nothing is known of what happened to this layout or any of the stock
shown in the pictures.