They are both modern coins from Thailand - will see if I can find out which ones ...
Your reverse Numista reverse Numista obverse
Your reverse Numista reverse Numista obverse
Meantime (I amended those images on the left with PhotoScape) here is the Thailand numerals list ...
https://en.numista.com/numisdoc/calendar-thai-33.html
Also - a request to
anyone asking for identification - we need images of
both sides, and the
measurements, and weight if you have scales - as much information as you have - to help us to help you.
Coin 1: if yours is 23.0mm diameter then I think it is this one of 1957 (year 2500) >
https://en.numista.com/catalogue/pieces5433.html Thailand 50 Satang - Rama IX
Coin 2: if yours is 26.9mm diameter then I think it is this one of 1962 (year 2505) >
https://en.numista.com/catalogue/pieces1701.html Thailand 1 Baht - Rama IX
So apart from seeing if they are those sizes, do the other sides look like those I put at the end, as you did not show them. Probably though they are the coins you have.