[derk derin]

Thanks Hanno,
I have had a couple of British handlebars in my collection of "Surplus items" and never knew what bicycle they came off of and also had a type of mount on the front with a leather strap. Looking at your link on British military bicycles you posted finally identified what bicycle the handlebars belonged to. It looks like my handlebars are off of a Mk IV bicycle and the mount with the leather strap is in fact the front rifle mount for the bicycle! Another mystery solved!
Regards,Derk