Two Bernard Instone Silver Brooches

These brooches were both made by Bernard Instone. The silver oval brooch has a large Rose quartz in the middle and the othe stones maybe agate. This is typical of what I think of his work with stylised leaves semi precious stones and the very neat finish of the back. it is marked silver but unfortunately this brooch hasn't a makers mark it was probably made during the 1930s.
The the silver leave brooch, to me is unusual I don't think I have ever seen a Instone brooch without stones or enamel work. It was probably more recently made during the 1950-60s but not sure. This brooch has a silver mark and B.I for makers mark. During the 1950s- 60s his two son started running the family business.
Many thanks for looking