Rollei Rear Camera Dust Cap (for SL66 or SLX???)

item #rolleirearcameradustcap. This cap has 2 holes in the top to clip it on and one on the bottom where it snaps to the camera. This may even be for an SLX or something like that??? The cap is 4 3/8" long and bumps out on one side and is 3 9/16" wide at