Kona seatpost size help!

[psyclone1976]

Due to lack of decent measuring tools I'm not sure if the seat tube of my 1994 Kona Cindercone is a 26.6 or 26.8? anyone know the right size?

 

[guybe]

Think it's 26.6mm, have a look at the link

http://sheldonbrown.com/seatpost-sizes.html#k