Cornish Shovel Handle.
Do you mean a Cornish shovel, West Country or Celtic Shovel? this handle fits an "eye" type socket as per the shovel in the 'photograph. The West Country or Celtic shovel handle is a bent taper handle secured normally by one or two rivets, please see my photograpgh and description for that type of handle.
This handle does not fit an Irish Round Mouth Shovel.
Cornish shovel details:
diameter = 1.5” length = 4' 6” from handle end to bend = 7”