Here you go. On mine AICO is cast into the control valve just ahead of the top hoses. Otherwise it looks identical.
The ports on the control valve have the following labels cast next to them, with the following applications:
B. Left Rear. Hose meets hard line just ahead of the muffler, then 2 lines go to 'lower', piston rod side, toward back of tractor, of the lift/lower cylinders.
A. Left Front. To 'raise', piston head side, front end, of lift cylinders.
D. Right Rear. Hose goes to second rigid line from the top as it goes along the arm, and its second from front on the crossmember. To 'curl' cylinders upper connectors, piston head side of each cylinder. Curl out.
C. Right Front. Hose goes to top rigid line, then front line across crossmember. Then to curl cylinders lower connectors, piston rod side. Curl in.
PB port on right edge of control valve. (Presumably Power Beyond.) Not used, capped. Does your hose I see there go to a second hydraulic controller? Or maybe your return is attached there. And there's a 'blind', not drilled, nub symmetrically opposite the BP port, over on the left edge of my control valve.
IN. Left front edge of control valve. Larger hose (3/8) goes to lower port on the connector block under the seat.
OUT. Right front edge, control valve. 3/8 hose goes to upper port on same connector block, under seat.