Where can I buy The Christian Science Publishing Society Bound Volumes?

I have a nearly complete set of bound volumes, both Sentinels and Journals, from 1905 to 1979. All but 2 are in very good shape - sturdy and clean. I'm seeking a market price - about $25-30 per volume, postage paid. I will deliver within 300 miles of Fairfield, Conn. if buyer wants all. contact slovak7@gmail.com