This issue is a variant of House of Mystery (DC, 1951 series) #310 [Direct].
There exist further variants.
On-sale date from The Comic Reader #203.
Colorist credit from the letters page of issue #316.
Letters of comment from readers Dan Shannon, Mike Spicer, Kyla Jones, Kevin O'Brien, Bob Lines, Jarrod Lazarus, and Michael E. Iacca.