It's a D28 type. The nut was recently replaced at a long-established musical instrument store in Kanda. The tuning pegs have a slightly light torque. There's a strap pin on the neck heel. The string height is 2.8 to 3 mm on the 6th string at the 12th fret, and about 2 mm on the 1st string. The headstock logo was missing from the time I bought it used.