page_title: South African Class 1 4-8-0
hierarchical_section_title: South African Class 1 4-8-0
caption_attribution_description: For the Durban-Johannesburg Express, Natal Government Railways: "Mastodon" type Engine
context_page_description: The South African Railways Class 1 4-8-0 of 1904 was a steam locomotive from the pre-Union era in the Colony of Natal.
  In 1904, the Natal Government Railways placed fifty Class B 4-8-0 Mastodon type steam locomotives in service. Six of them were modified to a 4-8-2 Mountain type wheel arrangement in 1906. In 1912, when the remaining 44 4-8-0 locomotives were assimilated into the South African Railways, they were renumbered and designated Class 1.
context_section_description: The South African Railways Class 1 4-8-0 of 1904 was a steam locomotive from the pre-Union era in the Colony of Natal.
  In 1904, the Natal Government Railways placed fifty Class B 4-8-0 Mastodon type steam locomotives in service. Six of them were modified to a 4-8-2 Mountain type wheel arrangement in 1906. In 1912, when the remaining 44 4-8-0 locomotives were assimilated into the South African Railways, they were renumbered and designated Class 1.
caption: SAR Class 1 no. 1245, ex NGR Class B no. 275
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