I'm pretty sure the DM-4 was made in Korea, but some may have been made in Japan just prior to the change. If you can see or have someone read the sticker in the soundhole, it should say. The M in DM stands for Mahogany back and sides. The DR-7 with that serial # would most likley be early 70's and if sound in body, an excellent guitar. I don't know the exchange rate of the euro, but that sounds pretty fair in price. Then again the Mahogany guitars sound rally good, so if it is mint, depending on price???, you may like it really well.