Welcome to Coin Talk. The coin is from Thailand. I am horrible with the Thai dating system and numbering. The basic currency unit is the Baht. What denomination this is or date I will leave for others with more knowledge to comment on.
It’s 25 satang, or 1/4 of a baht. It’s dated year 2500 of the Buddhist Era, or 1957 AD, but was struck from then to 1987 without a change of date.
your coin is from Thailand. date-BE2500, Y#80, 25 satang = 1/4 baht, size- 20.5mm , metal-aluminum-bronze, mintage-620,480,000 a very common coin.
November 1, 2017. Thailand - Treasury prepares for new coins and bank notes after late king's final send-off. - The government of Thailand continues to prepare to say their final farewell to the late King Bhumbol Adulyadej Mahidol, who passed away on the 13th October 2016 after an astonishing reign of 70 years. The royal treasury of the kingdom are beginning the many preparations of transition, which will include portraits and effigies of the new king, Maha Vajiralongkorn, on the country's next series of bank notes and coins.- - - - successor, 65 years old M.V. also referred to as King Rama X, his father's only son, was officially announced as Thailand's new king - - - -
coin-nut - If you are the only member of CT who lives in Thailand, that makes you special. You are a unique treasure to us !!!
Heck, I wouldn't call me a "treasure", Perhaps an oddity? I can sometimes be useful when it comes to reading some of these Asian languages and helping to identify coins. If anyone wants to swap some interesting world coins for UNC Thai coins, I am your man.