I was given a set of 22 R 2 dies a couple years ago. They are Pacific but not chrome plated. They look to be a good quality. Not sure of the marking on the top of each die. Sorry I have no way to take pictures. Looking at the top with each die indexed with the caliber at 6 o'clock, Pacific name at 3 o'clock. One die has an "S" at 9 o'clock and a "V" at 12 o'clock. The 2nd die has an "SX" at 9 and a "V" at 12. The 3rd die has an "S" at both 9 and 12 o'clock. There a decapping stem with the dies which fits all 3 dies. There was no seating stem. I need to order some cerrosafe so I can check inside die dimensions next. If anyone has a WAG what these letters mean, I would appreciate the help. Thanks