I've recorded this marking on 216976 --
216976 02 V in circle barrel steel.jpg
But no such marking on 217036 --
217036 01 VH, 16-gauge, xx-inch.jpg
From my observations the lowest serial number I've recorded with the PARKER BROS. OVERLOAD PROVED stamp on its original barrels is 219511 --
219511 01a.jpg
However, this could be a gun that languished in inventory as it has what appears to be a Remington date code of BD (B = January, D = 1935
)?!?
Here is 220042 with the PARKER BROS. OVERLOAD PROVED stamp --
220042 02.jpg