hi jdogg
i am confused whether it takes 120 film or not ...
after googling the name "agfa viking 6.3"
i found ebay selling pages with a close up of the winder
the winder says clearly, use "agfa pb-20 film"
when i googled THAT i learned that pb-20 is old 820 ...
( b2 is 120 )
but i also googled at the butkus manual site just to get a better idea
http://www.google.com/search?q=Agfa+Viking+f6.3&sitesearch=www.butkus.org
and it said it took 120 film ...
maybe there were several versions of this folder ?
it would be inexpensive enough just to get to see what yo could do with it, and if it doesn't work
you could probably sell it here, to a large format user, just for the lens
good luck !
john