I got this from Lee Product Support:
The Letter/Number stampings on our reloading dies are an internal manufacturing date code telling us when we made the dies. The Letter represents a month and the number represents the year, starting in 2000. For example A6 = January 2006, B6 = February 2006, etc. In years that have the same last number, such as "0", it could represent either 2000 or 2010.
Depending on what the die looks like, I can tell you which sizing die is which. If the die that has a hexagonal nut on the top it is the Full Length Sizing Die; if it has a knurled nut that is flush with the die body, it is a Collet Neck Sizing Die.
Once you confirm what type of die(s) you have, and how many total dies are in the set, I can send you the instructions at no charge.
So, it looks like the dies were made in Feb and August of '02. I sent them pictures of the dies and I just got an email stating that they are sending me instructions. Excellent customer service!!
Edited by mikei (12/13/14 05:11 PM)
Edit Reason: additiional info