The F looked like an E that mis-struck. So I filled in the other possible blanks and came up with GAE MI HYE. Sarching that I came across this page looking for info in Spanish. Not a speaker so have at it.It would tell us more if we knew how old it is. As to Indonesia, if they were only going to sell them in Indonesia the letters GAF wouldn't work. The letter F is rare, as most can't say F, usually P instead. If they wanted to sell them to other countries they would just mark cymbals. Cymbals in Indonesia weren't made until the 90's. The only one I know of is Nebulae Cymbals, but ya never know. They worked for decades trying to make one that played as a cymbal, but couldn't roll the bronze thin enough.