Clue: Ltr. addendum

Answer: PPS

Length: 3

---

Similar Clues:

• Place to find ltrs. in boxes (GPO with 3 letters)
• Glob addendum (ULE with 3 letters)
• Ltrs.' appendages (PSS with 3 letters)
• Addendum of a sort (RIDER with 5 letters)
• Map addendum (INSET with 5 letters)
• Ltrs. in a letter (ATTN with 4 letters)
• Calif. law enforcement ltrs. (SFPD with 4 letters)
• Big Board ltrs. (NYSE with 4 letters)
• Play addendum (EPILOG with 6 letters)
• Muscle car ltrs. (GTO with 3 letters)