Looking for Key

[pepsi-perk]

  

Got a lock but no key.  It is a tubular (round) key lock.  There is no number on the face of the lock, but on the cylinder it is stamped 6 71

Any help in locating a key would be great! 

Thanks!!

[tooth350]

     i was looking for a key for a cavilier cs-80c and went to a locksmith   he looked at the cylinder number and cut 2 keys for me        they work great     cost was about 6 dollars       try that first then  maybe a whole lock set       take care