Historical information
Prepared by the MMTB for the design of pointwork or switches.
Significance
Yields information on the design of trackwork.
Physical description
Set of two MMTB Drawings of Switches, points and turnout details
.1 - P3738 - Diagrams of Switch Data - actual switch blades - dated 30-10-1926
.2 - P9312 - Lorains No. 3 Switch Spiral Transition - dated 5/6/1942
Inscriptions & markings
.2 - dated stamped 5 July 1974