Diamond frame machines were introduced in 1905 at £8.17s.6d (£ 8.87 1/2) with single free wheel. These were not made inside the premises but brought in from elsewhere. 'Star', 'Hopper' and 'Dingley' seem to have been sources.
These machines came in 3 sizes and in 2 colours. The saddle was a National (Brookes license).