Can anyone identify the black metal brace, extending from the floor to the inside panel (to the left of the clutch pedal), in this photo?

http://lymanhall.smugmug.com/Trucks/1953-Chevrolet-3100-Truck/i-NNZRFDc/0/L/100_3135-L.jpg

Is this an original piece, or something that may have been added by an owner or repair shop?


1953 Chevrolet 3104 1/2-Ton
In the Stovebolt Gallery
More pix