Sources? For the cognoscenti? Yes, there are many, and two that come to mind, besides the most fabulous antiquarians in the world, are Scalamandre' and F.P. Victoria.
Here, I show you a vintage 1960's interpretation of a Louis XVI style bed, by FPV. Then, some lovely Empire style influenced curtain hardware, new from Scalamandre'.
Know this: buying what your decorator selects for you ALWAYS pays off in the long run, years after you've had it installed in your home or office. Quality is its own best advertisement, and there's no substitute for the "aura" one can achieve by way of living with things of inherent value and craftsmanship. You may pay more up front, but the returns on your investment will amaze and surprise you! Sure, you can go on Pottery barn.com and find a sort of slipper chair, but it will not last, and will not exude quality and luxury.
DeAngelis of New York on the other hand...that is another cognoscenti trade only workroom that does the most wonderful and well made pieces, which are such that they become family heirlooms, just like your grannys lovely old silver and china. Buy quality, you won't be sorry! DF *****