We now call it "snail mail" but back then it is one of the most important way to communicate around the world. Yes, I'm talking about the postal service and what's the best place to go to remember this is at the Manila Central Post Office.
President Corazon "Cory" Aquino historic speech in front of the Philippine Post Office in the mids 80's.
They call this stamp "The Golden Monkey"(So why is it black?)
Anyway, according to the lecture, this Golden Monkey stamp now cost 150,000.00 PHP. Wow! According to Wikipedia, " The Chinese Golden Monkey Stamp or Gēngshēn Monkey is a postage stamp issued in China in 1980 of which 5 million copies were printed and which therefore cannot be regarded as rare but which has come to symbolise the strong market for collectable postage stamps in Asia. Demand for the stamp has made it one of the most sought after contemporary Chinese stamps. The stamp was designed by Huang Yongyu and Shao Bolin and printed by the photogravure and recess printing methods.Although the stamp was initially common, it is frequently offered at Asian philatelic auctions. Despite having a very low value when issued, a full sheet of this stamp sold for 1.2 million yuan ($180,000) in 2011 with a single stamp selling for 10,000 yuan ($1,500), which was 125,000 times more than its original price of 8 fen. The stamp had a catalogue value of US$10 unused and US$5 used in 1988."