Slow down conspiracy theorists!

I can clear this up. Frank, thanks for catching the eBay ad.
1) I didn't say it was our box. But I didn't say it
wasn't our box either, so that's on me.
2) The pictures definitely belong to the seller. This guy contacted me a couple weeks ago asking about the box. This is pretty normal as we get several letters
a day from fire buffs and collectors. He never mentioned anything about eBay -- in fact sometimes people write to us after they buy something on eBay and they're afraid they've been ripped off.
3) We do have (at least) one other box here exactly of this style, exact same mechanism, but I have been able to find out very little about it.
4) The code wheel thing was driving me crazy, especially that I've never seen a number sequence of that type.
So I decided to post it here, hoping you guys might know more about it and save me a trip to the Rock or City Archives. Even though I still don't know who actually manufactured the unit (I suspect Gamewell sub-contracted it out, but to whom?) but did learn all sorts of interesting stuff that will go into our records here. So all your help has been great and much appreciated.
I am annoyed that this guy simply wanted to get info for his eBay ad. It happens more than I'd like to admit and it really goes up my a**. Sometimes people act like they're going to make a donation and then I see my email pasted verbatim into an auction on eBay.
For the record, I haven't written the seller yet and at this point have no plans to.. However, the box number will be valuable to whoever wins the auction.