Absence of the Symbol Resembling '4' in the Very First Folio 1r

[Ruby Novacna]

Here is an example of the numeral 4 shown as l in the You are not allowed to view links. Register or Login to view. from the late 13th century and 
a subsequent later addition on the left-hand side with said numeral 4 shown as q.

You change the font size in your posts? Because it's much smaller than in other people's posts.