school desk chair combination unit

I'm looking for any information for this desk/chair combo set. It looks very similar to the american seating combination units, but the box of the desk portion is solid wood, not steel as I've seen on the others. The hardware on the underside of the seat is marked "PAT APPLD FOR". The hinge on the interior of the desk is stamped with "STANLEY SY MADE IN USA". The solid wood desk top overhangs the box of the desk by about 1/2" on the sides, 1" on the front (closest to seat) and 1/4" at the back.

Any information about date would be very much appreciated. Just bought this for my nephew's bedroom and am very curious as I cant find another example with the solid wooden desk. Thank you!