For your consideration, here is a Glass Coffee Percolator Round Shaped Top with Knob.  It looks new.  It came from an old house.  It had an old price mark in wax marker on it, so I don’t think it was used.  It does have a small chip on the bottom edge.  I took a photo of it, second to the last photo.  The outside diameter at the bottom is 1 1/8 inches.  It has a height of 1 1/4 inches.  There are two square protrusions on the sides, at the bottom. 

It will be mailed in a box for protection.  Item pictured is the actual item up for sale, and comes from a non-smoking household.  (637.8a19a-.5b5)