Cape of Good Hope 1874 1/- Letter Per Rms

1874 Neat small format blue envelope at 1/- rate endorsed ^"Per RMS"^ and franked Hope Seated 1/- tied by BONC 2 canceller of Port Elizabeth with crisp cds DE 22. Cape Town transit cds DE 24. On reverse, London arrival mark JA 21 79 in red. F-VF.