Cylinder Burl Panel Secretary

Cylinder Burl Panel Secretary/Desk in Walnut. Crescent and dowel dovetail drawers, some repairs are visible, I would bet the desk top felt has been redone, Guessing 1880's or so based on the type of dovetail. Bottom cabinet door has "fake" key hole spot. I would love to know anything I can about this piece. I searched, flashlight in hand for any special marks and couldn't find any. I LOVE this piece, don't care if it's old, new, rehabbed or anything else. I would just like to know more!