The air valve is the old football needle type, make sure you lube the needle when trying to inflate it. I have this type of valve on a Lawwill leader fork fitted with Risse shock, It didn't hold air for long, so I made some new valves using cured Sikaflex & I've not needed to add air for well...
These are photos of my Fournales with disc mount as supplied new from Hagemeijer, it's not been modified in any way. Brakes fitted are Xtr M975 with a Mavic Crossride & 180mm disc.
A Mini caliper & all previous Hope hydraulic calipers are made of 2 halves held together by Allen bolts, the Mono & later caliper are machined from a single piece. The silver caliper is a Mini M4 & the other is Mono M4.