Cheers Singlecut. I would certainly regret selling my Aria Pro II.
From
Matsumoku - Wikipedia, the free encyclopedia the headstock looks very much like that of the Cutler guitar picture I've attached. It also says that Aria didn't start the Pro II series until 1975.
I've not managed to match mine to the list at
Aria Pro II Electric Guitar Info
It looks like the gold hardware would tie this more to a Les Paul Custom so the markings under the bridge and tailpiece may be mis-leading. Anybody checked their Aria LP Custom for these markings?