Thanks for the response, Duane.

I'll call the factory on Tuesday. Here's a quote about one of their lines.

Construction & Warranty

Frame Construction: Vanguard uses sustainably forested wood products and eco-friendly manufacturing processes whenever possible. Kiln dried hardwood frames. Snugly fitted, glued, double doweled joints that are reinforced with corner blocks.

Coil Construction: 8-Way Hand Tied coils.

Padding & Ergonomics: Poly Dacron Fill Cushion

Origin: Made In the USA

Not all of this applies to a chair. But I imagine that this same joint construction applies to all the chair lines if they put the Vanguard name on it, but I'll ask to make sure because you never know. Vanguard makes furniture for some large resellers using the resellers branding, and some of that furniture may not use the same construction methods.

Details matter!