State Records of South Australia, Government Record Group 5/2 - File 369/1903 Police Commissioner's Office - "Twelve Bicycles for the Police Department, Requesting -"
Attached is the specification for police bicycles as put out to tender in 1903. The contract was awarded to Messrs. Lob & Son, 129 Rundle Street.
This is likely to excite others more than it did me...enjoy :)