"1956"^^ . . "Y-1"@en . . . . . "This model of a 1925 Allchin 7 NHP Traction Engine has been issued in the following versions: Note: This model did not have a model name on the base. It was listed in the 1958 Model of Yesteryear catalogue as an Allchin 7 NHP Traction Engine and that name has been used in this database."@en . "Allchin 7 NHP Traction Engine (Y-1)"@en . "Models of Yesteryear"@en . . . . "Allchin 7 NHP Traction Engine"@en . "This model of a 1925 Allchin 7 NHP Traction Engine has been issued in the following versions: Note: This model did not have a model name on the base. It was listed in the 1958 Model of Yesteryear catalogue as an Allchin 7 NHP Traction Engine and that name has been used in this database."@en . . . . .