Philippine stamps released in 1909 consists of only 3 stamps, all of which are in perf. 12, watermarked. All 3 stamp designs were used for multiple decades often with subtle variations like color, number of perforations or watermark types. The 1P Coat of Arms stamp is the more challenging to collect in this year.
Note: The information below shows items from my personal collection - it is not intended to be a catalog of all other philatelic products that were released during this year.