When I was in Phuket the labour department used to put a half-page counter stamp in the back of my passport, for each work permit I was issued.

Does this happen in Bangkok? Do Thai immigration check it on the way in if you have a non-B visa?

Never heard of this. It is often immirgation that makes a note in your passport as to your reason for stay, but the labour office doesn't write in my passport.

I believe this stopped years ago. They did this on my passport years ago, but not now.since work permit and visa are no longer connected, it is probably irrelevant now.

Thanks. I got one counter-stamp in in 2545 and one in 2549, both from Phuket.