Two items personally-owned and used-by Bob Dylan: a personally-owned and-worn black leather motorcycle-style hat, originally donated by Dylan’s management to Evander Holyfield’s charity auction; and a concert used M. Honher “B” Marine Band harmonica from his 1990 World Tour, obtained from Dylan’s personal guitar and amplifier tech Cesar Diaz, accompanied by a photocopied letter of provenance from Diaz regarding the harmonica, one of a complete set (A-G) which Dylan used on stage. It was not uncommon for Diaz to provide a single LOA for multiple harmonicas. The original LOA was photocopied when harmonicas from the original set were sold singularly. Diaz began his association with Dylan in 1986; leaving in 1993 to devote time to his amplifier business. In 1991, Diaz played guitar on nearly 50 concert dates. Besides Bob Dylan, Caesar Diaz worked with a number of high profile musicians, most notably Stevie Ray Vaughan, Eric Clapton, Keith Richards, and Neil Young. Guitar World Magazine dubbed him ‘The Amp Doctor’ for his work in tube amplifier repair and modification. Both items are shadow-boxed and framed with a portrait of Dylan and a descriptive plaque to an overall size of 42 x 37. In fine condition.