[color:"orange"]does it also work with pyramids???[/color]

The quicksave trick may work with teleporter stones, but that wouldn't help with your lost one. The teleporter stones are not identical. The first time I recommended the inventory file swap to get back lost teleporter stones I tested that it would work. The game doesn't have any problem using 2 sets of teleporters. If you call the teleporters of each set A and B, then whichever teleporter you moved last becomes the active teleporter of each type. If you have A1 on the ground, then drop A2, that teleporter becomes dominant. Drop B1 and B2 on the ground, and clicking on either will bring you to A2. If you dropped B2 second, then clicking on either A1 or A2 will teleport you to B2. Confused yet?

You could probably duplicate the teleporter stone, but both would still try to send you to the missing one.