Silverplate tea service

I own a silver plate tea service (teapot,waterjug,cream jug,and sugar bowl.It has the Aladdin’s lamp imprint of Roberts and Belk,and R&B in a cartouche. The number
underneath this is 7434 which I presume is the design number.Is this enough data to identify the year of manufacture and/or any value (if any) :question:

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