All information for this issue supplied by the Atlas/Timely list.
Previous indexer credited pencils to Colletta. It's not certain that these are even his inks. An atypical cover for Colletta and/or his studio.
Coloring credit confirmed by Stan Goldberg.
Previous indexer had Colletta as penciler. Jim Vadeboncoeur thinks this is pencilled by someone a step up from Colletta: like Reed Crandall or Fred Kida or Mort Leav - an excellent artist who Colletta is hiding just enough and he wishes he were clever enough to uncover that artist.