Question about a ring I found..

[RaptorSE]

Just curious, what does MOD on a silver ring mean. Its stamped .925 MOD and has two circle stamps with like a "+" and "-" sign roughly.

This may be just a simple newb question LOL. Im not familiar with jewelry markings, so I figured Id ask you guys. Thanks in advance ! ( its in the cleaner now, will post a picture later). It a huge hunk o silver too, size 11 , fits me perfect and very thick and hefty. Gonna wear it

Later

 

[U.K. Brian]

MOD is a designer/manufacturer of silver items based in Bali, Indonesia.

Brian

 

[Sandman]

Brian is right. I once found a silver ring with the 14 Kt. inside. Learned the 14 Kt. is in the mold and when they pour the silver, the ring gets the 14 Kt. that looks like a stamp. I thought I was rich as the ring was huge.