Heatmor

Heatmor's at £5.45, and there's decent spread in the UK market—36 sellers range from £4.38 up to a median ask of £6.52, so the cheapest listing is 33% under the middle. The caution here is that graded copies don't justify the cost: PSA 10s haven't moved in a fortnight and sit around £186.83, which is 42.66 times the raw reference price of £4.38, so raw is the sensible play.

• CautionPSA 10 hasn't sold in two weeks. Don't pay to grade.
• NotableUK asks run from £4.38 to a £6.52 median; the cheapest is 33% under the middle.