Looks like it's 'home brewed', or a hitch from another brand adapted to work. I have a Bolens 3-pt for my 1886-01 and it's nowhere near close to that. It does look like a pretty good job tough
Since you say that you don't have any down pressure, I'm guessing that the hydraulic cylinder is a single acting one, and not double acting. If you can find a double acting cylinder the same size, all you will need to do is plumb it.
How is it operated? By the standard lift lever with up/down/float, the axillary lever with just up/down, or with it's own separate control?
I have that same issue with the home brewed FEL
on my 1886. For who knows what reason, the PO that built it used single acting lift cylinders, so all it will do is lift, and has no down pressure at all
I need to get mine changed to double acting so I can get some down pressure on it.'