Just a regular unlimited, no special variation, Base Set booster box. The standard of 36 packs coming sealed together was set as the standard for Pokemon in 1999. Still to this day 1999 POKEMON BASE UNLIMITED BOOSTER BOX 36 PACKS SEALED NEW ONE COUNTRY CODE 742818060349 eBay BOX FRESH 1999 Pokemon Base Set Unlimited Booster Pack FACTORY SEALED WOTC eBay 36PC 1999 Pokemon Base Unl. Complete Booster Box sold at auction on 25th June Bidsquare 1999 POKMON BASE SET ENGLISH BOOSTER BOX SEALED sold at auction on 6th December Silver City Auctions Sealed Pokemon Card First Edition Box Set Smashes Record At Auction