ancient Thailand baht coins, please estimate the market price

Not ancient, late 19th century.  Please add diameter and weight and best guess at composition to help identify.

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rsirian1 is correct. This appears to be a Thailand coin from 1860 under Rama IV. 

Depending on the size, weight, and apparent metal (all of which should always be included with ID requests), it looks like some portion of a baht. Just looking at photos online, it looks like it might be a ¼ baht

https://www.ngccoin.com/price-guide/world/thailand-1-4-baht-km-pn6-1860-cuid-1103347-duid-1553500

or it might be a ½ baht

https://www.ma-shops.com/pkkmgbr/item.php?id=31085&curr=USD

or it might possibly be a 1 baht 

https://auctions.trigo.co/lots/view/4-AN92QM/thailand-1-baht-rama-iv-1860-ngc-xf-45