I have by now (inadvertently) compiled a mini-collection of cancelled stamps from Great Britain— from envelopes sent to me with South African stamps inside.
Here are stamps from an envelope that arrived today.

2004 (13 Jan – 16 Mar). Classic Locomotives.
One side phosphor band (20p.) or two phosphor bands (others). Perf. 14 ½.
2417 1705 20p. greenish yellow, magenta, new blue, silver and black Dolgoch, Rheilffordd Talyllyn Railway, Gwynedd
2418 1706 28p. greenish yellow, magenta, new blue, silver and black CR Class 439, Bo’ness and Kinneil Railway, West Lothian
2420 1708 42p. greenish yellow, magenta, new blue, silver and black GWR Manor Class Bradley Manor, Severn Valley Railway, Worcestershire
2421 1708 47p. greenish yellow, magenta, new blue, silver and black SR West County Class Blackmoor Vale, Bluebell Railway, East Sussex
[Source: Stanley Gibbons Great Britain Concise Stamp Catalogue 2009]

2007 (9 Jan). The Beatles. Album Covers.
Two phosphor bands.
Self-adhesive. Photo Walsall. Die-cut irregular perf. 13½-14½.
2690 1946 72p. greenish yellow, magenta, new blue, silver and black “Revolver”
[Source: Stanley Gibbons Great Britain Concise Stamp Catalogue 2009]