On Friday, March 1, 2019 at 11:15:28 AM UTC-5, gray_wolf wrote:
On 3/1/2019 6:40 AM, Sonny wrote:
On Thursday, February 28, 2019 at 6:25:00 PM UTC-6, DerbyDad03 wrote:

Speaking of having the back off, take a look at this thread when you have
a chance. That thread is about the back panels of this piece. Another
curiosity on my part.

Back Panels On Desk - Cutting Error, Modification or Design Feature?

How deep are the drawers compared to how deep the carcass cavity is? If there is some carcass space (1"?) at the rear, maybe there were vertical boards along the back (side) edges, that the back panel attached to, rather than their attaching to the sides of the carcass. I don't see any nail/screw holes to support this idea, but maybe the vertical board attachment evidence are somewhere unseen in your pic.
https://imgur.com/0bXFzQJ

Sonny


What's wrong with some quarter round strips glued in the corners?

There's nothing wrong with that idea, assuming I needed an idea. ;-)

There's nothing that needs to be fixed the back panels. It was just a
curiosity about the way they are attached.