Modifiche

** 1930 – [[Unbreakable]], prima stilografica in ''[[Eternite]]''

** 1930 – [[Unbreakable]], prima stilografica in ''[[Eternite]]''

** Anni Venti / Trenta: [[Summit H.55|H.55]], [[Summit H.60|H.60]], [[Summit H.75|H.75]] ed [[Summit H.100|H.100]]

** Anni Venti / Trenta: [[Summit H.55|H.55]], [[Summit H.60|H.60]], [[Summit H.75|H.75]] ed [[Summit H.100|H.100]]

** Anni Trenta – [[Summit S.65|S.65]], [[Summit S.70|S.70]], [[Summit S.75|S.75]], [[Summit S.77|S.77]], [[Summit S.100|S.100]], [[Summit S.112|S.112]], [[Summit S.115|S.115]], [[Summit S.125|S.125]] mk 1, [[Summit S.120|S.120]], [[Summit S.121|S.121]], [[Summit S.175|S.175]] mk1, [[Summit S.175|S.175]] mk2: stilografiche e matite (serie “P.”), [[Summit Sentinel|Sentinel]]

** Anni Trenta – [[Summit S.65|S.65]], [[Summit S.70|S.70]], [[Summit S.75|S.75]], [[Summit S.77|S.77]], [[Summit S.100|S.100]], [[Summit S.112|S.112]], [[Summit S.115|S.115]], [[Summit S.125|S.125]] mk 1, [[Summit S.120|S.120]], [[Summit S.121|S.121]], [[Summit S.175|S.175]] mk1, [[Summit S.175|S.175]] mk2: stilografiche e matite (serie “P.”), [[Summit "Sentinel"|"Sentinel"]]

** 1931 – [[Silver Wing]]

** 1931 – [[Silver Wing]]

** 1934 - [[V76]] e [[V106]] "[[Autovac]]"

** 1934 - [[V76]] e [[V106]] "[[Autovac]]"