Welcome to the Forum from (northern) South Texas!
The experts will be along shortly...but the odds are that is an aged Italian repro that is missing the wedge screw.
Pictures of the serial number(s) and any/all other markings would be good.
The experts will be along shortly...but the odds are that is an aged Italian repro that is missing the wedge screw.
Pictures of the serial number(s) and any/all other markings would be good.