The Garrard 301 has a very definite value in the marketplace. Just look up the prices of other units that may be for sale at this moment, and use those data as a guide. It would also help if you would say what version of the Garrard you have there. Grease bearing or oil bearing, for example. Also, is it in a plinth? If it’s in a plinth, what kind of plinth ? These details determine the ultimate value.