Is quire 10 a single bifolio, or two folios stitched together?

[ReneZ]

Apologies if this has been asked an answered before.

According to tYou are not allowed to view links. Register or Login to view., Quire 10 consists of a single bifolio with one flap (f69.1) on one side of the binding, and 2 1/2 flaps (f70.1, f70.2, f70.3) on the other.  However, on the You are not allowed to view links. Register or Login to view., there seems to be a gap between folio f69 and folio f70; as if those two were separate pieces of parchment, loosely stitched together. 

Maybe there is a triple fold there, that hides a strip of the bifolio?  But I see no sign of it on the images of You are not allowed to view links. Register or Login to view. and of You are not allowed to view links. Register or Login to view. 

All the best, --jorge

When the 2016 Yale photo facsimilar was produced, the manuscript layout was double-checked before producing the figure on page 24, which is equivalent to the diagram on my web site, so this is definitely a single sheet / bifolio.