Thanks for all the feedback. The gunshop where I looked at the random selection of Whitworth barrels was Safari Outfitters in Millbrook, NY. I have two Lefevers with barrels marked Whitworth Fluid Steel, one c. 1891 and the other c. 1900. Neither have the wheath sheaf trademark. Both are definitely original, as found, Lefevers, so I had no reason to think that they were "fake" Whitworth barrels, yet have been curious as to why the wheat sheaf trademark was not on them. The fact that Safari Outfitters had a random selection of very high grade English guns from the same period with barrels similarly marked as Whitworth Fluid Steel, but without the wheat sheaf gives me more comfort. Thanks for the education, particularly to Mal Mac Gregor on the point that early Whitworth barrels did not have the wheat sheaf or tube numbers. I suppose the only question I have is when the transition occurred from the "early" Whitworth barrels without those markings to the "later" barrels with the markings.
