Gillette Date Codes were used from January 1951 until 2001. They are found in the top left and right corners on the underside of razor guards, both 3 piece and 1 piece models. The letter represents the year, found on the chart below, and the number 1-4 correspond with the quarter of the year.

How do I know if my razor is safety?

They are found in the top left and right corners on the underside of razor guards, both 3 piece and 1 piece models. The letter represents the year, found on the chart below, and the number 1-4 correspond with the quarter of the year.

How much does it cost to tighten a safety razor?

This small gap is what allows the blade to cut the hair while the guard glides along your skin. You should tighten your safety razor until the threads stop, without leaving it loose and without overtightening, which could damage the screw and possibly break it.