I purchased an Winchester 54 circa 1926 and the Marble's #14 Gold Sheard front site blade had been banged around. I found unused vintage blade site on eBAY listed as a #14 however when it came and I opened the envelope the site reads #46.5. Looking at the package itself hand written in pencil is 465H,

It will not fit in the Winchester 54, the blade sight is much to thick to fit in the slot. Any ideas what firearm this site will fit?