Ruston and Hornsby IP (Industrial Paraffin) 5hp.

Manufactured by Ruston and Hornsby, Grantham, Lincoln.

The IP range was introduced in 1920 and remained in production until 1928. They were produced in 6 sizes from 3hp to 15hp. This example is a 5hp and dates to c1923.

Most were produced with a single flywheel but twin flywheel was offered as an option if smoother running was required.