about the only thing worth while in those are the lenses. inside you will find 3 sealed lens assemblies. which have extremely nice cut lenses. if you want to try and make a very nice home made telescope, these are the lenses to use. just be careful opening the sealed section, they are filled with glycerin. oh and the large mirror inside is a very good quality mirror if you need something like that. otherwise i would say take it to Goodwill and get a tax right off.