Aerangis articulata - black spots

[milks]

hey all


I just received this plant from a well respected eBay seller. The undersides of the leaves have many black spots, the smaller of which appear slightly indented. They look bacterial to me but I'd expect the plant to be in a very poor state were this the case. The plant otherwise seems healthy.

Have contacted the seller to see what they say. Anyone here have experience with these?


thanks