1930 Roadster rear bumper question

[smittykid]

I've att. a pic of a 30 Roadster. My question is this: Was that full rear bumper an actual option in the day, or did someone just mount a front bumper on the rear? I've seen a couple of A's with this set up. Personally, I like the looks of the 2 smaller bumpers. Could this have been an after-market option? As always, thanks. Smitty