Search:

It seems like on one of your pictures that there is a circle before the Blue, kinda like this one.
244240
Furthermore Goins Encyclopedia of cutlery, list Blue Seal razors as 1920-1940.

Many older American razors have horn scales, That said you don't really see many German razors with horn scales, especially a somewhat generic razor like this one, so perhaps it was re-scale at some...

Definitely not British,perhaps American made Blue Seal, but more then likely German, certainly will turn out to be a fine shaver.