Afghanistan 1000 Afghanis SH1370 (1991) 61c clarification

Hope everyone well as possible;

The existing page for this note indicates 2 types, thin & thick Security threads, but there is no explanation or example(s). My World Paper Money 1999 Vol 3 doesn't differentiate. Should/can an example of the difference be added to the page? I've logged my note in the 'thin' for now since it seems most common but i really haven't a clue.

thanks, happy 4th to those who celebrate!
john
jcornellxx@gmail.com

It's hard to tell unless you have both. Look at these pictures:



See the difference?