I have learned that the more dots, the stronger the snuff, but does the placement of the dots say anything about age or location? We don't have a one dot...maybe they didn't make snuff that 'weak'? All found in old deserted homesteads, creek beds, woods, around SE Texas over the years. Is there any particular value? We have one with a cork (not pictured). I have been using them as vases. Thanks for any info.