How much money is a Getzen Capri Alto Saxophone worth?

I have a Getzen Capri Alto Saxophone sitting in my attic at home and I was wondering how much it could be worth. My dad was given this by a friend when he was little, in the 60s. I tried doing some research online but i could only find getzen capri trumpets and trombones. I remember reading something though that in 1963 when the building burned down this company stopped making woodwind instruments... ANY IDEA WILL BE APPRECIATED, THANKS