This is a complete set of 6 Official Cover for the 1988 PHILIPPINE OLYMPIC WEEK held in various iSlands in the Philippines as follows: CEBU CITY - GOLFING DAVAO CITY - MOUNTAIN CLIMBING MT APO, DAVAO SIQUIJOR,SIQUIJOR - SCUBA DIVING MANILA CENTRAL - YACHTING APARRI, CAGAYAN - BIG GAME FISHING MARAWI CITY, MINDANAO - TOUR OF MINDANAO First Day Covers were postmarked on their respective city all dated July 11, 1988. Envelopes have a beautiful insignia for the Olympics on its front. All unused Very Clean Envelopes Unaddressed Each envelope measures 3-5/8 x 6-1/2" Send email for more details. Buyer is responsible for $2.95 shipping to anywhere in the USA & CANADA. Send email for international rates. Please check out the store for many First Day of Issues and other interesting Philippines Collectibles daily. Thanks for stopping by!