A lot of older kits have numbers printed on them so the die-cut parts could be identified after they had been removed from their sheet. W34 would just be a part identification number. Can you get some close-up pictures of the interior, wing, etc., especially if the part numbers can be seen. Someone may recognize the style of printing, as each kit manufacturer I've seen had a slightly different style of printing.

Also, if a plane is carefully built, it would be almost impossible to distinguish between a laser cut, die-cut and hand cut kit, other than part markings. I suspect the plane you have is an older kit, not CNC or laser cut. Most people think my Skat Cat 500 is scratch build - it doesn't have any part numbers on it and I have center lines I have drawn on the bulkheads, fuselage sides, top, ect. that aren't printed or marked part of the kit.

Hogflyer