"Union Pacific" Movie novelty spike, 1939

From: "David Harding" bigred66@cebridge.net

My name is David Harding. I live in western Indiana. I received for Christmas this year an original spike that was handed out to the guests at the premier of Cecil B. DeMille's "Union Pacific" movie in Omaha in 1939. I have looked without success everywhere I can think of to find info on this spike and it's value. My insurance agent wants me to have it insured for replacement value. Do you have any information on how many were produced and what its collector value is? Or have a link to a site with the information on it's value? It has some tarnish but is in good condition. Any help with this situation would be very much appreciated.

—Mr. David Harding