Hey FlatheadTed. That's a very interesting photo.although it isn't or doesn't appear to be an actual chain drive starting system. You photo appears to be driven through a gearbox and shaft, both to drive the gearbox as well as a replacing the hand crank with a shaft. All three of the chain drive starters I have seen installed on model T's where mounted under the hood. The starter had a gear and another gear affixed to the crankshaft with a very heavy chain to turn the engine over. The chain was very much like a modern timing chain. Thank you for the photo, it just goes to show how many different products where offered and/or home built for the old tin lizy . That's an interesting mount, right at the front of the frame. Very cool. Take care.