What a great and helpfull forum this is!

I am about to choose between two Sigma's. A ragged DR-7 with serial# 6465, or a Mint DM-4 with # 51208380, "est 1970" logo (Martin style). I understand the DR-7 will be the better choice but is 80 euros more expensive.
What I really can't figure out what year and in wich country the DM-4 is made?
Please help.