Selmer Balanced Action Alto

Selmer Balanced Action Alto, one of the early ones, serial 21629. Original color of lacquer finish looks great, but likely degraded (bare brass seems exposed in areas, a few surfaces on some keys have a greenish color), but aside from that it seems tip-top (no dents or dings) and still sounds and plays great. Purchased privately by my parents, and I played it mostly in junior high school through college (1980-1989). Estimates of the value are as high as $3,400. I’m asking $3,000 or best offer. This is the second time I’ve posted it here, was contacted 3 times but after I responded they did not reply again. Not sure why, but I hope only serious buyers take interest this time.