The early issues are undated, but they can be identified by the covers. They are great references because they include prices as issued for many contemporary paperweights and also price trends over the years. All are softbound. I have a number of extra copies for sale. The early issues are especially hard to find.
Condition ranges, but all are very serviceable copies.
Some are clean, some have writing or other flaws. Please feel free to ask me about condition for any of these publications.