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Replacement handle make quite often. The original handle was probably made ​​of horn.
By dating the handle I can not help unfortunately .. I can only say that it is from the German razor.
As for...

Hello
The handle is not of this razor.
I think that this razor made ​​before 1891 because there is no labels "England"
About the manufacturer:
John NOWILL & SONS, Nowill Cutlery Works, Sheffild...