Looking for approx value on this mixer

Hello all experts, I'm looking for some advice on what this unit would be worth if considering a sale?? DENVER D12 LABORATORY FLOTATION MACHINE Serial No. 07-169519-001-1 D-12 H.E.P.C Research Div. No. C 2535 INFO: https://www.911metallurgist.com/equipment/denver-d12-laboratory-flotation-machine/ Betzy YouTube link: https://youtu.be/QE7w68EmaCI Its a DENVER D12 Laboratory Float Machine It is of course used but in excellent working order. Serial No 07-169519-001-1 Model No Gould Century St. Louis. Missour 63166 7-150071-017 FRAME M48 TYPE CS HP 1/4 RPM 1725 /1425 CODE E HERTZ 60/50 PH 1 • VOLTS 115/230 AMPS 3.6/1. 8 1.007 FORM SERIAL R9 TIME CONT AMBIENT. 40 degrees C SF 1.00 INSUL B NEMA DESIGN Much appreciated of the assistance... Betzy

Equipment: Laboratory Mixer