I found the pictures in a book, I only saw this type reverse on the commemerative coins. I am not sure if this is a regular coin. I believe it was minted in Philadelphia. I do not know where the mint mark would be if there was one. Any info?
Yes that looks like the regular 5 centavos from Philadelphia (no mint mark). If there was a mint mark, it would be to the left of the date. https://www.ngccoin.com/price-guide...tavos-km-180a-1944-1945-cuid-32747-duid-95753
During WWII General MacArthur confiscated and dumped the Philippines' precious metals into the bay during an early retreat so that the Japanese could not use it to buy war supplies. After recapturing the United States produced currency for the Philippines to make up for it.
Phillppine coins dated from 1903 to1919 were struck at Philadelphia and San Francisco mints. Those dated after 1920 were made in Manila. During WWII, coins of 1944 and 1945 were made at Philadelphia, San Fransisco and Denver.
Here is a nice summary: https://www.ngccoin.com/coin-explorer/philippines-under-us-sovereignty-pscid-83