I don’t know quite how to classify a font like this.
I got as far as latin hand-written (script), tool maybe brush, rough, or wild brush. Then what? How to measure the weight? 
The vertical stroke of the E varies enormously depending on where you measure it, and even the caps height is not too obvious. Visually, it looks like at least bold, but strict measurement gives Book with a WeightRat of about 9.