UK: For Sale

Have you got any way to prove the 57 is not a clone/copy ?
Maybe a music store receipt?
if you have il take it

I've got three SM57's, all are definitely genuine. I bought them a couple of years ago from retailers, I'll see if I can find a receipt for them, but I'm not sure how lucky I'll be. I understand your caution, so no hard feelings.

what models are those triggers?

RT-10K & RT-10S