Machins 50p

Chalk-surfaced Paper Deep Ultramarine 17 Jun 1970 Click for Stamp Set

2 Bands Orche-brown 02 Feb 1977 Click for Stamp Set

Ordinary Paper Orche-brown 21 May 1980 .

Ordinary Paper Orche 13 Mar 1990 Click for Stamp Set	2 Bands Orche 20 Mar 1990 .	2 Bands Orche 14 Dec 1993 Click for Stamp Set
2 Bands Gray Photogravure 27 Mar 2007 Click for Stamp Set	2 Bands Gray Litho 13 Jan 2009 .	2 Bands Gray 17 Feb 2009 Click for Stamp Set	2 Bands Gray 08 May 2010 .
2 Bands Slate 03 Jan 2013 Click for Stamp Set	2 Bands Slate-Blue ..2013 .