LAVORO 'They will now survivor allowance gas?' service on the accident in the mine of Roccascalegna (Chieti) May 12; 1956: A violent outburst of gas cost the lives of six workers; is the testimony of a survivor: 'There was no security measures; nor lamps; or counters; ALL the curved ribs supporting appeared; there was no ventilation ... ' double-page of the weekly illustrated the CGIL; May 27; 1956