Because SH and SSH have the same size blade, just different length handles (the clue is in the names). So as we can see the blades are pretty much the same length as your original bat, we can be sure they're not harrow bats. A harrow blade is 1.3cm shorter than full size. I agree that the middle blade is a little shorter - as I said in my earlier post - but not so much shorter as to be a harrow in my opinion. The widths of the blades also appear to be the same, a harrow blade is narrower by around 3mm.
So, why not line the 3 bats up again and take a photo including the full length of the handles. Our analysis can then continue.