To clarify, I think The only LL's with the brown felt dots are LL item #'s 1 through 24. These are from the original first "batch or "group" issued and the printing on the bottom can be damaged by price stickers etc. Most of these were issued to dealers with the LL display stand as a boxed intro set for dealer display and individual sale. In addition the LL folded catalog in these boxes only pictures the first 24 and is a small 1 inch or less square fold. If you have any of these LL item #'s 1 through 24 with blue felt dots they are from the second release with the improved printing on the bottom. #'s 25 and above all have Blue felt dots on the bottom with the improved printing process.Also the improved printing used on pieces with the blue felt dots is ever so slightly raised as compared to the first issue printing being very flat on the surface.