I have three polished brass hinged covers and their respective steel clips for sale.
I bought them some years ago to fit to my engine but as someone had previously cut off the hinge posts from the eccentric oil reservoir tops, the job got put on the back burner for so long that the engine has gone but these were buried in a box that came to light the other day.
There are two 2 1/2" long (hinge centreline to end) x 1 3/16" wide and one 2 3/4" x 1 13/32"
Price £75 including p&p