They are all dated 1804 and there are 13 varieties. It wasn't working until I figured out a faster method. I was going through the PUPs of each variety trying to find the one that matched. After the best part of 1½ hours I found there was WAY too much info for my old brain to process. So what was the shorter method? Go through the PUPs of each variety and find the ones that definitely DIDN'T match. There's always one or two. That got rid of about two-thirds of the varieties in a couple minutes. Then I only had about 4-5 descriptions to go through. DONE!