Terre du Milieu print antique

Hello! My husband and I came across this pen and ink art (not sure if print or original) in our local antique shop today. We purchased it because it was super cool looking and we’re Tolkien fans so wondering if there is actually any connection. The only other info on it is “Olivier, 78”. We cannot find any evidence of this print online. Does anyone know if it could be related to Tolkien in any way or what scene it is referring to?