Bangkok Thailand antique silverware set

So this was my grandma's that's been dead since 1992 she collected little spoons had hundreds of them and this was in her closet my grandpa was in World War II a master sergeant gunterman so he flew all over the place and I guess he got this at some point in Thailand it say s. Samran Thailand Co LTD Factory 357 / 6 and there's a address of petchburi Rd Branch 1, 1245 new road Bangkok Thailand tel.33839 at least that's most of what the tag says that I can read I can find these different pieces all over the internet but not in the same box with four I can't find the Box anywhere I'm baffled any help would be greatly appreciated thank you