www.925-1000.com

If you suspect this came from Southeast Asia, check to see if this script is from one of their languages. It's not Indonesian, since they use Roman alphabet. Check Thai, Burmese, Cambodian, etc.

I know this is an ancient thread, but just to confirm that these spoons are definitely Indonesian -- I have a similar set from my parents (much nicer, but not as nice as the other set posted in this forum subsequently). The wayang figures are characteristic Indonesian icons, as expected of souvenir ...

My understanding is that Yogya silver refers more specifically to the elaborate repousse style, so these spoons would not be considered Yogya silver. They are however definitely Indonesian, showing the wayang figure on the ends. I have a set of these spoons too, from my family.