For those who may be looking for a used box. Note, Elderly Instruments is mainly a stringed instrument dealer, so don't expect accordion expertise from them.
Went to Elderly over lunch (it's near where I work) and checked this box out. Like new condition, walnut is my guess, and no strap brackets or mic mountings. Good looking "spiral" pattern inlays. Tuning is wet, more than I like, but stops down to dry very nicely, too. Case is sloppy with loose white foam rubber inside. Forgot to tell the guy the stops go on top!
Can't say I'm up on prices, but I paid about this for my Martin D box (new) back in 1998.
-- Jr. Martin also has a raccoon and a heron available for the bellow graphics. He doesn't advertise those. They are created by the same California artist that does the crawfish.