They probably do and half the fun of going to get that item is exploring and seeing some new stuff.
Call
There are all sorts of antiques and vintage. It's possible there is some train related merchandise.
What's great about the River Market Antiques Mall, is that if you are looking for a particular item they will email all vendors that they have a customer looking for that item so they can contact them if they have that particular item. Other than that they do not have a directory of what each vendor specializes in. On each floor there are floor managers and I would ask them for your help.
They are a collection of booths from many different vendors, so the only way to know is to visit personally and browse yourself. There are four floors in total, so I always find something I can't leave without even if I strike out on what I originally go there for. Enjoy!
I seen one or 2 over time but items vary day by day so I would suggest checking in person. Never Know Who Has What
Not that I've ever seen.
Not that I had seen the last time I went
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