Bill Fry Construction - Wm. H. Fry Const. Co. Fortunately, this photo has been already tagged with the answer, run your cursor over the photo and you'll find the tag. The tub is by Waterworks.
:) Rhoda http://www.billfryconstruction.com/
The Bath Works, Inc. It could be one of ours, our Roman has been shall we say 'interpreted' by a few people since we started selling it well over a 15-16 yrs ago. We use a stronger material closer to the original Fireclay.
Waterhouse Bath and Kitchen Studio It also looks just like the Waterworks Empire. Your best choice of all this listed is the Bath Works. You can never go wrong choosing quality over price. The same is not always true choosing price over quality.
:) Rhoda http://www.billfryconstruction.com/
http://www.poshhaus.com/store/p/7266-Aquatica-PureScape-510-CristalStone-Freestanding-Stone-Bathtubs.html#.UDgsM9aPVvs