- 1Collection of documents relating to Arthur John Bohringer, automobile engineer and designer (MS/2199)
1918–1927, fonds - 2General documents relating to The Princeps Motors & Engineering Co. (MS/2199/1)
1918–1927, series - 3Income tax returns and documents (MS/2199/2)
1918–1921, series - 4Correspondence and receipts (MS/2199/3)
1918–1927, series - 5Certificates (MS/2199/4)
1919–1920, series - 6Certificate of Registration of Design for a motor car chassis (MS/2199/4/1)
1919, item - 7Ampere-turn diagrams (MS/2199/5)
series
