used PORTO RICO: The collection of selected examples primarily showing the barred oval cancellations, including Aguadilla "F84"; Arroyo "F83"; Mayaguez "F85"; Ponce "F88" and San Juan "C61", a fine range of Line-Engraved and Surface-Printed issues, a few multiples and combination pieces, etc. All are ex Kempster and comprise lots (complete or largely complete) 2507, 2513, 2517, 2533, 2535, 2537, 2538 and 2544