'Marti' was the name of the agent/rep who dealt with Charlton on behalf of Union Studios. On a few occasions, his name was mistakenly added by a letterer in lieu of the actual artist's.
Previously credited to Enrique Nieto, this page is the work of Demetrio Sanchez Gomez, who also worked through Union Studios. Enrique Nieto has confirmed that this is not his work.
Letters of comment from readers Matthew Lund and Pat Romano.