Quote Originally Posted by manah View Post
The history have a lot mysteries.
From "History of Yorkshire", Jan.1822.



From "Post office directory of Sheffield", 1854.



But enough for 1834.
As I saw, usually John Barber marked his razors with his name and Masonic symbol.
I can add somewhat to our little list of clues from another Sheffield history link-but there is no definite answer to the question of whether these two Barbers were one and the same. From:

Spring Knife Cutlers man.

List of Sheffield Spring Knife Cutlers
BARBER, ISAAC. 38 New Meadow Street, Sheffield. Circa 1837.

Could Isaac Barber possibly have used the trademark: "The Old English Razor" which got cut in the article you kindly scanned? Finally, the letter I does not equal John. I lean toward Isaac Barber being his own man, and not a nom de plume of John Barber.