Hmm. In Robert Doyle's 'Straight Razor Collecting' he list W. Revitt as being active certainly pre - 1830 to around 1860. No country of origin, though. The 'Standard Guide To Razors' by Ritchie & Stewart just list 'Revitt' but as Germany. Odd, because my Revitt (I think a FRANK Revitt(? can't remember!!) was Sheffield.I do believe Gugi is correct as there was a W. Revitt, razor maker, listed at Meadow Street Sheffield in 1834. Sheffield it is then!