BAILEY BANKS & BIDDLE CO silver plate

Hello. I find silver board with these marks.

According to marks this board was produced by BAILEY BANKS & BIDDLE CO. in Philadelphia.

Maybe someone has an example example of the maker’s mark “STERLING” like this.

Also, I see mark “PHILADEPHIA” on my board. Can it be manufacturing defect that letter “L” is missed in the word " PHILADELPHIA "

Hope on you help.
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