In the entry for Armenia's 5000 dram P#51 (https://en.numista.com/catalogue/note213686.html), we have the types P#51a (2003), P#51b (2009) and P#51c (2012). We also have P#56 from 2012. However, according to Bank Note Museum, the only 2012 dated notes are P#56, whilst P#51b should be 2003 (with additional omron rings) and P#51c should be 2009.
http://banknote.ws/COLLECTION/countries/ASI/ARM/ARM0051.htm
http://banknote.ws/COLLECTION/countries/ASI/ARM/ARM0056.htm
If this is right, could we please move members with the 2012 date to P#56, move P#51b to P#51c and then create a new P#51b for the missing variant? A message to members with P#51a might be useful so they can assign their notes correctly.