So I recently restored an Ansco No. 5 camera and stand. However I don't think the camera was ever anchored to the platform prior. The platform doesn't have any holes in it. I do, however, see two holes in the camera's rail, just behind the middle standard. They don't seem to be the logical holes to use because using them would render the front bellows fixed, no longer adjustable.

If you happen to have this setup, how is yours secured? Mine currently slides around on the slippery felt.