Excellent Fun Set.  Was made by Marks Bros....Set No 602....  Includes a four page manual (excellent condition) on the rules of Ping Pong.  Cover box shows some wear but is still sound with good colors. Under box has some tape repairs but still functions well.  Paddles in good shape, have a sandpaper type surface.  Net and supports all there.   Could not find any copyright or other dates listed but found some info about the Marks Bros on google,  A very good guess for dates is 1940's maybe early fifties