Two black heroes on slave trade abolition stamp series

Paterson Joseph performs his novel The Secret Diaries of Charles Ignatius Sancho in St Margaret's Church, London, on 12 October 2023. A new memorial to Sancho will be unveiled in the church in December. Photograph: Lucy North/PA

To offer some small credit to Royal Mail, Olaudah Equiano did feature on a first-class stamp as part of the Abolition of the Slave Trade series in 2007, which also included a 72p stamp for the great Ignatius Sancho (Opinion, 28 October). That the same series also included four stamps of white people tends to confirm the point that black figures have been poorly represented.
Graeme Cottam
London

• I reread your article (Seaweed was common food in Europe for thousands of years, researchers find, 17 October), because I thought I must have missed it – a mention of bara lawr (laverbread). Seaweed never “fell off the menu” in Wales – it’s still there to this day. Very tasty, too.
Helen Moelzl
Tuntenhausen, Bavaria, Germany