Happened to have noticed two three! Waterman stoves on ebay lately.
The first is a 3 burner model offered at $399 – you can view it here. Too much $ IMHO
Second is a model previously unknown to me – with its bandy legs and basic design, I believe it to be one of Waterman’s earlier offerings. Not sure what the center burner is for??? This could make a great outdoor or camp stove! Priced reasonably at $70 See it here on ebay.com
The third can be found here on ebay
It looks to be in decent shape and is very representative of the Waterman product… The auction lists it as 3016-T…am thinking that is a serial #, not model #