Possibly mid 1960`s - 1970`s, Dobro serial numbers are almost impossible to decipher. Wood body, squareneck, sounds amazing, comes with hardshell case. Fully acoustic, a total player with beautiful checking in the finish. All play wear is documented in the pictures. She seems all original. sadlle, spider and cone in great condition. Selling her for a good customer who`s owned and played this guitar since new.