Former Prime Minister Sir Robert Muldoon's rail pass is for sale on Trade Me.
Touted as a piece of memorabilia "for the rail enthusiast who has everything", the gold railway pass expired in 1987 and is personally signed and embossed with "Rt Hon Sir R Muldoon".
The auction has a starting bid of $40, and includes a signed portrait of Sir Robert and a letter from his wife, Thea.
The seller, "desbookman", promises the authenticity of the rail pass and is selling more historical memorabilia, including Henry Ford's hair.