Dee - In most all cases when the die starts to wear down the frosted areas start to go away if they were prepared that way, in the case of the Boder Town stike none of the other frosted areas have gone away. I have had a chance a couple of days ago to look at one of the non frosted types and afterlooking at it very well it is made from a different die. This is what has made it a varitey. What I found of interest is that it took so long for this variation to come up, I guess it is because the Boder Town strike is a tougher one to get and not many have been on ebay the last few years.
It will be interesting to see if Lisa responds to your post to say if she has it listed in her book.
Walt