I'm considering the sale of a sideboard that I have. It's the barley twist style and is in fantastic condition although it is missing whatever was across the back. It was either a mirror or plate rack. I spent tons of time trying to find out what the missing piece is, to no avail. There is one water mark on the top.

Where is the best place for me to find out how much it's worth and the best avenue to sell this specialty piece.

We have another discussion about this type of sideboard, including relative worth, with images here: Barley Twist Sideboard

Lauren

Yes, there is a similar discussion of this type of sideboard. However, do you know for a fact this is Stickley Bros? (Quiant). Is it signed?
The hardware do not look like Stickley Bros. The beveled drawer face is not Sticley. The lack of a plate rail or mirror back will affect its price. It also is a form that is not pure arts and crafts. The finish doesn't look original. It looks like it's been cleaned. That affects the price. As such, the item will be around $800 to $950, perhaps a grand at auction. The barley twist design was a late entry to the Arts and Crafts movement as tastes changed from the severe lines of Craftsman style furniture. In comparison, a late Gus Sideboard, unsigned, and stripped, circa 1908 would be around $3,500. In early Gus sideboard would be 5 to 8 grand. Or 11 grand and up depending on rarity, age and condition.

We had a later Bros sideboard, with barley legs but otherwise very A&C. It had an excellent original finished, marked, with mirror backsplash. Tried to sell it for over a year and finally got $500 for it at a show.

That looks very much like the sideboard a few posts down thay says it has a Stickley brand...