Related Clues:

• Submission encl.
• Encl. with an RSVP
• Oil can letters
• Postage-paid enc.
• R.S.V.P. enclosure
• Oil-can letters
• Manuscript encl.
• Mailing courtesy: abbr.
• Enc. with a manuscript
• Abbr. on a can of motor oil
• Ready-to-mail item, briefly
• MS accompaniment
• Letters on a motor-oil can
• RSVP enclosure
• Aromatic mint