Looks dirty but complete beside the radiator cap which should be replaced with an aluminum one anyway :
Now lets go further and find out what was the problem that stopped it for so many years
Some clogged "arteries" but that's probably because of the long time the cooling fluid sat in the system:
Ok, engine and gear goes out...
Everything looks fine up here but as it turns out after head removal, one exhaust valve had a broken lip. beside that we measured the bearings and found out the this engine was overalled in the past, meaning it's 0.25 ands we go now 0.5 away from standard.