Physical description
Set of two black and white photographs which have been coloured to show possible arrangements for covers to the side frames of a Brill 21E and Brill 22E (single truck or four wheel truck or bogie tram).
1793.1 - Showing possible arrangement for a cover for a maximum traction tram truck - cover has been outlined in red and then coloured to match the tram colour. The body has been coloured as well with green and yellow colours.
1793.2 - ditto for single truck tram No. 20.
Background for the preparation of these photographs is unknown. Date unknown.