Hi Christopher, Thank you for contacting Mearto with your appraisal inquiry. This looks to be circa 1940s - does that align with when your great grandfather would have purchased it (was he the original owner?) Based on the photos and information provided, and subject to examination, this is: A vintage Rickenbacker "Electro" lap steel guitar circa 1940s patent #2089171 With hardcase (DIMENSIONS) CONDITION: client represents this to be fully functional. PROVENANCE: inherited $800-1,200* *represents a fair-market value for auction purposes; retail or asking price may vary. Please let us know if you have additional items to appraise, and thank you again for using Mearto.
