3 vintage Federal Glass clear shot glasses with fluted sides and square bases

This is a set of 3 vintage signed Federal Glass clear shot glasses featuring round fluted sides and square bases. They stand just under 2.25” inches tall with a rim diameter of 1.5” inch and a base width of 1.25” point to point. They are signed on the inside bottom with the Federal Glass logo which is an F inside a shield. Very good pre-owned vintage condition with no scratches, chips or cracks.