Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla An yi amfani da sabon zane a matsayin tushen Class E, wanda Neilson, Reid da Company suka samar a shekarar 1902.
Tabbas, mafi rikitarwa na jumla shine "An yi amfani da sabon ƙirar a matsayin tushen aji na E, wanda Neilson da Kamfanin suka bayar a cikin 1904, kuma a cikin wannan shekarar Central South African Railways sun gabatar da aji na F, wanda Vulcan Foundry ya gina. "