Okay, generally speaking, I hate serial number systems that aren't straight-forward. This on I hate. In any case, I gathered some info on various Aria Pro II (Korea) guitars, their serial numbers and their (claimed) year of production. I hate maths, so I'll let you decypher their system. MADE IN JAPAN' must have been produced at the Ibanez factory or for Ibanez. Some brands known to have come out of the Matsumoku factory: Aria. Guitar makers, Anboy, Andrews, Angelica, Antares, Arbiter.
Hi Ive been the very proud owner of an Aria Pro II Les Paul for around 13 years but I actually know very little about it. Having come across this excellent site, Im now really interested in its history. Heres the details that I think may be useful and Ive also attached some photos (although I seem to be limited to just 5) to help with the identification. Weight: 9.5lbs Colour: Tobacco, I guess. (There is a darkening of the colour towards the edges but Im not sure I would class this as sunburst).
Body: Mahogany with arched maple top. Bindings front and back.
The mahogany looks to be two slices sandwiched together and the back piece appears to be butterflied, theres certainly a line down the middle. The maple top also appears to be butterflied. Neck: Looks like three pieces, possibly maple spine sandwiched between two strips of mahogany. Long tenon glued into the body with two additional screw fixings within the neck pickup cutout. Fingerboard: Rosewood with 22 frets and fret bindings. Large block mother of pearl inlays.
Really low action without any buzz. Hardware: Gold, good quality tuners and gold bridge and tailpiece. All are showing some wear to the gold finish. The underneath of the tailpiece is marked with MADE IN JAPAN LP-S. I presume the LP-S stands for Les Paul Standard. The underneath of the bridge is stamped with L S BRIDGE MADE IN JAPAN. Controls: Usual two volume, two tone.
Gold coloured Speed Knobs. 500kohm pots mounted on a circuit board. Usual Les Paul type 3 position switch. Headstock: Not the open book style, it is more dome shaped. Bindings to front. 3 screw truss rod cover.
Split diamond motif, although this differs from the diamond motifs on the other Aria Pro II Les Pauls that Ive seen online. No serial number anywhere on this guitar.
Building and engineering contracts by b s patil pdf free. Pickups: Black Humbuckers of unknown make. Both pickups have what look like inverted Ts in the centre of both coils. 
To one side both pickups have an H with a P in the top half of the H and an I in the lower half.The Bridge pickup has a 1 on one coil and a 3 on the other. The neck pickup has a 2 on one coil and a 4 on the other.
The cable to the pickups, which is just a single core co-ax, is marked as Mogami Wire Cable Corp. Although the pickups performed reasonably well, I have recently changed these for a pair of IronGear Rolling Mill handwound pickups from axetec.co.uk. These have made a very marked improvement in both tone and definition.