"In the difficult Old Masters world of today collectors are left with an ever decreasing pool of experts to work with. To compound the problem, finding highly-trustworthy, in addition to highly capable, experts is very difficult indeed. Thurner is an ethical, dedicated, and skilled advisor. It is why I have trusted him more than any other expert in helping me find, evaluate, and research lots. There is nothing more thrilling than being shown an unexpectedly excellent piece, but nearly as exciting is being shown why a painting may not be the right fit. I cannot recommend his services highly enough."