The guitar has been donated to raise money for charity.
The auction has been organised in memory of baby Ryley Lucas Judge who sadly died at 5 weeks old. All proceeds will be donated to Macmillan Cancer Support and the Neonatal Unit at New Cross Hospital, Wolverhampton.
Organiser Katie Meehan said:
"I have been raising money for over 10 years now and this is one of the most generous things I have ever come across. Being a big Robert Plant and Led Zeppelin fan myself I would truly love it to go to a fan."
The auction is open and the successful bidder will receive the signed Ibanez Model V70-BK guitar, 2 8x10 photographs of Robert Plant signing the guitar, signed guitar box, new strings and strings played by Robert Plant.
Those interested should submit their bids via email to email@example.com. The auction closes in September.