My name isCustomerand I would love to help.
This tea set made by International Silver in the Kingsbury pattern was made in silver plate only and not in sterling.
The B that you mentioned is a monogram and represents the last name of a previous owner.
This set has a value of $200 to $250 retail.
To polish, it is best to use Wright's Silver Cream available in a jar for about 4.00 at Walmart and most grocery stores.
It is easy to use and is not harsh on the silver plating or on your hands.
To finish, I will need you to click the five stars at the top of your screen and hit submit, thanks!
Hello,I am following up to see if you have read your answer and need further help with this item.Please do let me know.