That is actually a break on the hub. There were several dies where this happened that year.

http://www.coppercoins.com/lincoln/...ie_state=eds
It was a marker for the 1936P-1DO-002, but this one isn't from that die, but the same hub created it. It looks like more of the hub has broken off when the die was created from the damaged hub.

http://www.coppercoins.com/lincoln/...ie_state=eds
It was a marker for the 1936P-1DO-002, but this one isn't from that die, but the same hub created it. It looks like more of the hub has broken off when the die was created from the damaged hub.




















