Superman #135

KG Murray's Superman #135 was published c.late 1958:

The cover is a slightly modified version of the cover by Al Plastino from Superman #115:

The main features:  

The Three Substitute Supermen, originally published in Superman #115, August 1957

Superman's Greatest Enemy, originally published in Superman's Pal, Jimmy Olsen #30, August 1958 

The Human Missile, originally published in Superman #120, March 1958

This issue also contains two full-page filler strips. The inner front cover strip is titled Mankind's Greatest Inventions and Discoveries!, which originally appeared in Strange Adventures #26, November 1952. This was reprinted in Tales of the Unexpected #27, July 1958 in modified form as per the GCD entry. The Australian edition is missing a text box - I assume this is the modification referenced above. The filler on the inner rear cover is a Shorty strip originally published in Adventure Comics #163, April 1951, but this one is related to the later reprinting in Wonder Woman #99, July 1958.

The Human Missile was subsequently reprinted by KG Murray in Colossal Comic #37.