a die chip near the 9 o'clock point of star 5, and
a die scratch in the dentils near 12 o'clock.The photo for JK Obverse 4 (NGC AU55) is from this Heritage auction lot, an example of HA-1.
The photo for JK Reverse F (PCGS MS64) is from this Heritage auction lot, an example of HA-8.
There are pick-up points for JK Obverse 4 beyond the date location. These include:
a die chip near the 9 o'clock point of star 5, and
a die scratch in the dentils near 12 o'clock.
There are pick-up points for JK Reverse F beyond the mintmark location. These include:
a roundish lump on the upper left serif of the M in AMERICA,
die lines in the dentils over the U in UNITED, and
Die lines from the dentils below the OL in DOLLAR.
So, the task is to find an auction lot that pairs the JK Obverse 4 date position with the JK Reverse F mintmark position, shows the pick-up points for JK Obverse 4, and shows the pick-up points for JK Reverse F. Then you have confirmed an example of JK-8.