Abstract
The study of the lapidary material from the forum of the Castellas agglomeration, in Murviel-lès-Montpellier (Hérault, France), revealed many lewis holes whose form suggests the existence of a gripping tool exerting its effort in the direction of the width of the mortise, contrary to what is generally accepted. The shape of the instrument locked in these mortises for lifting the blocks is the subject of different hypotheses. Following the example of the well-known lifting-tongs, a lewis can be reproduced, made up of joint and articulated pieces, that lock during lifting. We propose here a hypothetical restoration. Very simple to use, facilitating the work of hollowing the mortise into the block, the reconstructed tool has been successfully tested for lifting a block weighing more than 800 kg.
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