Additional Information
Date: 1954
Variety: RPM
Mint: San Francisco
Coneca: 6
Coppercoins: 6
Die stage and die state are different. Coppercoins lists die states only and does not list die stages at all, whereas Variety Vista will continue expanding on the die stages when each subsequent evaluation shows something that wasn't there on the previous example. As you saw in your own example, you can have a VLDS coin that is a stage L but in some attribution guides would probably need to be stage M or N when the die chip finally occurs. While I was attributing for coppercoins, we decided at the time that just listing the main die states was adequate. Of course, at that time, we had no idea how many thousands of varieties would be listed 25 years later (and that is just for Lincoln cents).