I don't know where it came from, but for $210 I'd have trouble keeping the speed limit to go buy it!
So it looks like I'll have to thank Mr. Wonderful and VA. Grouseman for enabling my relapse into the vise buying addiction. Their comments tempted me to go and check out the vise for sale that I had posted about a bit above (Post #90,028). I ended up buying it, but was able to bargain the price down to $150. It turned out to indeed be a Columbian 206 M2 Combination Pipe Vise, except modified with the odd pipe jaws as shown below. It was the first vise that I've purchased that has been heavy enough (at 165 lbs) to make it necessary to take it apart before trying to carry it. Also shown in the picture for size/scale are: (1) the obligatory can of beer, and (2) a Record #6, also with a 6" jaw width, which I used to think was a big, heavy vise until now.
The back story on this particular vise is that the previous owner had gotten it from his uncle, who lives in a town in Quebec, Canada named "Asbestos". As you might imagine, the main attraction in this town is a former asbestos mine, the Jeffrey mine which produced half of the world’s asbestos, operating from 1879 until 2001 and was the largest open pit asbestos mine in the world. The uncle worked as a pipefitter in the Maintenance Shop where the vise was used to hold piping sub-assemblies upright while additional pieces were threaded or welded on.
The special pipe jaws (see picture below) appear to be expertly fabricated, likely in the mine maintenance shop, from blocks of steel, machined to hold pipe jaws that are normally part of a Ridgid tri-stand pipe vise.
It appears that a slightly more modern version of Columbian Combination Pipe Vise, the 206 M3, was sold by Wilton, after they bought the Columbian vise company in the mid-90's (see advertisement below) but it is now discontinued. Seems like $150 was a pretty reasonable price after all.
One last interesting tidbit from the person I bought the vise from - when I first saw the vise I said, "Wow, that's a big vise!". He then said, "No, that's the small one that my uncle gave me. He has another much bigger vise that he is also wanting to sell." I'm guessing it must be a heavy industrial 8" vise. I'm currently waiting for photo's and pricing on the "big vise".
Regards, Tom