i found a site for antgique ignition keys ....many durant keys listed ....I searched web for keys for sale and got this....
"KEYMEN"
they sell classic car keys

also, from hemmings.....
jessers classic keys
akron, ohio
330-376-8180

www.jessersclassickeys.com

i have not used them but they are listed as sellers so check 'em out

regards, gary k

p.s. what does your car key look like?....any numbers/name of lock -key maker info....????

send it to gary's email with a pic.

Where Are You From? penna