Silver plate serving set?

Good day, collectors weekly gang. I need your expertise once again! I acquired this silver set a few years ago..not sure if it's sterling silver or know what the set is used for..help! Only two of the five goblets are marked; one has a gothic capital G with other undecernable symbols and the other has letters s & m and other undercernable writings. The tray has a mark that reads AUG (the "U" is wider then shown). Thanks for looking. Happy trails!!