This softcover magazine publication is entitled "The Magazine of Fantasy and Science Fiction", and is dated December 1981 (Volume 61, No. 6- "Let Einstein Be" by Isaac Asimov).
These issues are full of short stories by a variety of authors such as Robert Silverberg, George R.R. Martin, Edward Wellen, and Bob Leman.
It measures approx. 5.25" W x 7.75" H and comes in good used condition with cover wear and an address label still on the front cover.
Great addition to a collection of Fantasy & Science Fiction magazines.