urbanMSP

I don't know if anyone here can help with this but this forum has a fairly knowledgeable base so I thought I would give it a try. I was just contacted by a design studio that wants to use some of my photographs for a brochure they are putting together for a bid for light rail rolling stock that their client wants to sell to Metro Transit. I have never sold my photographs before so I have no idea what to ask for. If anyone here has experience with purchasing or selling photos for producing marketing materials for bids, I would love some insight. I think they only want to use the photo, not buy its copyright.