I've had this bass almost a year and it does have Marcus's signature on the back. Very well takened care of and just had it set up last month. Upgraded the pre to a Mike Pope Flexcore 2stk.1stk 2-Pickup 5-Knob 1-Switch 4-Band Vol/Tone Stack - Bl - Treb - Lo Mid/Hi Mid Stack - Bass - A/P Sw that I ordered from Max at best bass gear drove up to his shop in Maine to have him put it in himself at no charge!!! Really a great guy and knows his stuff. And replaced the pickups with the bass mods big phatty 5 hum canceling pickups quite in all settings. Plus all the control cavities have been copper shielded. I don't think it can get any better for a jazz bass. I’m Looking to sell locally right now. Possible shipping at buyers expense. This sale is final no refund!!!