1939 Prewar Martin O-17 Acoustic Guitar 017. 1939 Prewar Martin O-17 Acoustic Guitar 017 This one is in awesome cosmetic condition with a few things to look at in the HD Photos below. _gsrx_vers_526 GS 6.6.6 (526). The item “Vintage 1939 Prewar Martin O-17 Acoustic Guitar 017″ is in sale since Sunday, August 23, 2015. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Electric Guitars”. The seller is “soundinvestmentsusa” and is located in Hopewell, New Jersey. This item can be shipped worldwide.