Small circular damage on leaves of an unknown orchid

[Jim S]

This orchid was taken from an extremely stressed abandoned plant (pic 4), I have no idea what type of orchid it is. There were no visible pests or leaf damage.

The rescued plant is growing quickly, and except for the leaf damage appears very healthy. I’ve flushed the plant, collected the water which ran through the potting medium, found no evidence of any pests alive or dead.