Well, the text is certainly altered, Nigel, if it is the same artwork. Henry Steele reviewed that issue of Jumbo when we updated the GCD FH data with Hames Ware. His first line of dialog in the Sheena strip in Jumbo #1 is "In search of the mysterious Sheena, Bob Reynolds..."
Having never seen the book myself, that's the closest I can come to answering your question. And Henry IDs the Jumbo artist as Mort Meskin. If this WAGS Sheena is by Meskin, it's too early for me to recognize him.
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