There seem to be some colour variations, but looking at my own notes and on the web, the differences seem to be as big inside the type as between the two types.
Just call me Bram
No new swaps for the moment, still too many half-ongoing swaps to clean up!
I'll try to check on my notes if that is indeed the difference … for sure impossible to see on used notes. And 193(2) on Banknote Museum looks just as yellow as 192. I hate those subtle colour differences (said Mr. colour blindness 😒)
There is inconsistency of our listings with Banknote Museum, as there 193 is only D-series