I have the blue-green Swedish Treskilling (Scott Swedish #1)
It has the same typo on the I in SKILL as in this image:
and if I read the Scott 1990 and 2005 catalogs correctly, the stamp with the typo is very valuable (though not the $2.5 million this stamp in yellow is worth)
On the note from an appraiser (done in 1991), it says:
"The above pictured stamp is SWEDEN, Scott #1, 2nd REPRINT 1868, 3 s, perf. 14 and is in my opinion GENUINE, unused, no gum, short cornerperf. U.R., no other faults."
My question is, would a reprint also have this typo? How does one then determine it's a reprint? I'll add that this typo is also noted on the back of the card the stamp is mounted in.