article_snippet: Sebastian Ziani de Ferranti in Oldham had previously made meters and transformers, but switched production to fuses and 18-pounder shells in 1915.
article_snippet: Mr de Ferranti had previously made meters and transformers, but switched production to fuzes and 18-pounder shells in 1915 .
highlights_snippet: His firm had previously made meters and transformers, but switched production to fuses and 18-pounder shells .