cover 1921 (10 Jan.) envelope (opened-out) annotated "Registered Insured #1.10.0" to Groves & Lindley, England, bearing, on reverse, ½a. (2) + 1a. (4) tied by two strikes of segmented c.d.s. (D1.) with London registered d.s. in red adjacent and bearing, on front, "INSURED" label in pink and blank registration label. Extremely rare. Photo

細節
cover 1921 (10 Jan.) envelope (opened-out) annotated "Registered Insured #1.10.0" to Groves & Lindley, England, bearing, on reverse, ½a. (2) + 1a. (4) tied by two strikes of segmented c.d.s. (D1.) with London registered d.s. in red adjacent and bearing, on front, "INSURED" label in pink and blank registration label. Extremely rare. Photo