Hi:

This is my first post as a new member.

I've been studying the 1905 and 1925 Miller catalogs from your web site. On the Champion 6-lever pdf page 32 of the 1905 catalog it mentioned "Unlimited Key Changes" but on the next page "Champion 4-lever" is says "120 key changes", then on pdf pg 34 "Empire 6-lever" is says "12 key changes". What are key changes?

http://www.prc68.com/I/Locks.html#Lever_Pancake_Padlock

Have Fun,

Brooke