I listed this as used, BUT to my eye it has never been used. The linen part is labeled "Genuine Belfast Linen". The leather strop is labeled "Genuine Imported Scotch Shell" and was imported imported for the Philip Blackman Co. of York Rd., Philadelphia, a well-known  name in barber supply companies who is sadly long gone. My guess is that this is circa 50's or possibly 60's. A beautiful piece in perfect condition made from the BEST POSSIBLE MATERIALS. No Apologies whatever. Thanks for looking - if you have a few minutes, I have many other tools of all kinds listed in my Ebay store.  (Kitch - 524 - E/F)