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!