Diamond frame machines were introduced 1905 at £8.17s.6d (£ 8.87 1/2) with single free wheel. These were not made inside the premises but brought 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).

   

Diamond frame with 3 speed gear
	Gents	Ladies
Royal	11 gns	£12
Standard	9gns	£10.5s

Ladies Diamond model

The Lady has a celluioid chain cover.

 

Gents Diamond model