Lovies Guitars

Hi all, this guitar came from the grandson of the original owner. He claimed to have never sold it and was kept in his possession since purchased new. It has a funny looking serial number placed over the serial spot on the label. L 373. This is too short and not even a corresponding serial number in terms of others. Is this a special order, promo guitar, or anything in the like? Any help is greatly appreciate, thank you for your time if you respond. Derick Lovies Guitars