The rifle features in a Manton & Co catalogue of 1926 and is illustrated and described but the maker is not specified.
engraving is not typically English - urns surrounded by relief flowers and scrolls.
Right. Cabela's had one of these in .470 for sale not long ago. Same engraving pattern. I've seen a number of these. There was an identical Manton rifle with the same pattern on the cover of Shooter's Bible, Gun Digest, or similar publication some years ago, and was identified as having been from Heym. All of these have German proof marks, not British. Look at the illustration in the Manton catalogue, and notice the German proof mark.
