What you have is a Philippines 1917 S 1 Centavo. This was minted by the San Francisco Mint. The US controlled the Philippines (due to the US winning the Spanish-American War) and minted coinage for them. The Philippines also had a mint of their own that barred the M mint mark, for the Manila Mint. That was the only US Mint outside mainland US. The Manila Mint was destroyed during WWII. After the war the US gave the Philippines their Independence.