envelope to Glasgow, signed by the Commanding Officer and bearing 6d. dull mauve (imperforate at right) with fine Hamilton H1 c.d.s. and with London Paid c.d.s. in red alongside, London and Glasgow c.d.s. on reverse. Photo" /> cover 1869 (15 Mar.)<I> "Officer's Letter"</I> envelope to Glasgow, signed by the Commanding Officer and bearing 6d. dull mauve (imperforate at right) with fine Hamilton H1 c.d.s. and with London Paid c.d.s. in red alongside, London and Glasgow c.d.s. on reverse. Photo | Christie's