[DCRM-L] folio format question

[silvanan at mptek.net]

Hi all,
Can a folio have horizontal chain lines?
My book:
Philostratus De uita Apollonii Tyanei scriptor luculentus 
Venice : Vitali, 1502
33 cm
sig: A-L6 M-N4 O6
w/ horizontal chain lines (can't really see any watermarks)
Sure looks like a folio to me ...

-Silvana