Using a scalpel or a sharp knife to remove the glue and loosen the leather in the grip area. Underneath the leather are hidden screws.

The one shown in the last picture needs to be removed in the next step.

Use gentle heat to soften the fake leather cover and expose 4 additional screws to be removed later. Carefully work the softened cover out from under the levers. I used a hot air station at 110C/230F