Sweden: 1 krona 1879, km#747, over date

N#15890

A documentation based on Felix Ekberg's site,  myntinfo.se

Felix describes this as “9 på upp och ner vänd 9” = “9 up and down and then rotated on the vertical axis”, which for me is a “6”?

Comments, please?

Numista page has:

1879 EB LA  77,254     Overdate 79/76 exists

I know that. I don't know what the Swedish catalog says!

This Swedish catalog only mentions overdate 1876/5 for this type:

So could this be over a “5”?

It's quite difficult to determine.