Letter, William Slater, 4 Carleton Chambers, Regent St (London) to Robert O'Brien, 29 Oct 1858, thanking for information received and telling of a visit to Northampton Architectural Society when the Hon Sec W James showed the meeting the memorial to be undertaken in St Marys Cathedral (Stafford). Sheet folded, written two sides. Embossed with lyre in shield. Watermark: Joynson 1856.