A Lewis pin is one of a category of lifting devices used by stonemasons to lift large stones into place with a crane, chain block or winch.
A Lewis Pin is one of a category of lifting devices used by stonemasons to lift large stones into place with a crane, chain block or winch.
A Lewis pin is one of a category of lifting devices used by stonemasons to lift large stones into place with a crane, chain block or winch.
A Lewis pin is one of a category of lifting devices used by stonemasons to lift large stones into place with a crane, chain block or winch.