[split] Those Scribbles

[RobGea]

I had a play with the scribbles on f86v3 across the TOmap and JKP's suggestion of a childs scribbles seems the best so far.
Perhaps i spent too many hours looking but it  looks like multiple signatures, a repeated pattern of english 'W.R' 4-5 times on the top line, maybe one 'WR' near the end of the 2nd line.
Did children practice their signatures then? Was a signature a thing back then?