Possible Clues:

• 'Pygmalion' monogram
• "Pygmalion" monogram
• Literary monogram
• Literary inits.
• 'Major Barbara' playwright, briefly
• "Pygmalion" playwright's monogram
• ''Pygmalion'' author's monogram
• 'Pygmalion' playwright, for short
• 'Pygmalion' playwright's monogram
• Lit. monogram