I was having a hard time seeing the difference between the 64PR DDR-004 and the 64PR DDR-005 Kennedy Half Dollars. The PUP are almost identical but I noticed that in the descriptions a difference is a double spread on stars from K5 thru K6 for the DDR-004, and a triple spread on stars from K5 thru K6 for the DDR-005. This was difficult to see under the scope so I took some pictures using 200X with a QX3 and the difference was clear. You might want to try this with your difficult attributions. Larry Nienaber
