cover 1890 OHMS envelope (250x125mm.) to Emil Tamsen at Waterberg, bearing 1868 5/- and 1890 1½d. with cork cancellations, showing St. Helena c.d.s., "REGISTERED/ST. HELENA" oval h.s. in red and superb "POST OFFICE/CROWN/ST.HELENA" oval h.s. in violet with another three strikes on reverse; most attractive