Depression Era Photo-Boys Plowing with Horses-Sepia

I acquired this Depression Era framed photo at an estate auction.  The photo is in great condition, and actually looks like it was reprinted, or perhaps it is original, but it is on 'heavy board', rather than photo paper.  You can see a little white spot by the standing boy's leg.  This is not a rip in the photo, but something stuck to the inside of the glass.  The white spot moves with the glass when cleaning it, but I didn't want to tear the back of the picture apart to remove it, as the back is sealed.  This great photo is in a wood frame that is also in excellent condition and measures 12 3/4" x 12 3/4" (outside dimensions) and 9 1/2" x 9 1/2" (inside dimensions).   A nice 'old home' touch to decorate any wall.  All questions welcome.  Visit my store for other great vintage & decorative items.  Happy Shopping ~