3 1/4 dia. spool is 1 1/8” Inside This is a rare Hardy model reel was sold by H.C Golcher & co San Franisco Cal.my research shows this was a sporting goods store Fine guns &fishing tackle They closed in 1937 This reel was made for them It has a name plate inside reel as photo shows The reel is in excellent condition to fish or collect The line guard is very unique it can be turned in case you wore a groove