. "THOMAS WALKER & SON LTD." . . "data deposito: 21/12/1927" . "THOMAS WALKER & SON LTD." . . . "SOLCOMETRI PER NAVI" . . . "data deposito: 21/12/1927" . . "FABBRICA" . "1927-12-21" . "THOMAS WALKER & SON LTD."^^ . . "37484" . . . . "MR032759" .