http://cgi.ebay.com/Michigan-State-P...item1c17302d46
Vintage Michigan State Police (MSP) Patrol-Car Key Chain
You are bidding on one (1) MSP heavy-metal key chain.
I belive it was used for patrol car keys for the Michigan State Police.
It has Michigan State Police 5601 Stamped on it.
In looking at the number 5601 it appears to be a now closed post from Wayland.
There is minor wear on it.