Historical information
The drawing provides details of the two sets of springs that fit on either side of the axle box of a Brill 21E four-wheel truck. Gives load, sizes, and material dimensions. Revision E dated 7-11-1958. Prepared by the MTTB for use on four-wheel trams. Original drawing dated 30/9/1927
Significance
Yields information about Brill 21E truck axle box springs.
Physical description
Drawing Foolscap size with two punched holes on the left hand side.