Good afternoon my name is ***** ***** is my pleasure to assist you. Is it possible to see images of the instruments?
The current resale value for your buffet crampon R13 clarinet is $1,300.00 to $1,800.00
The Bach Stradivarius ML $1,200.00 to $1,400.00.
The best place to sell them is surprisingly ebay. They bring the highest values there.