Great Britain 1914 postage due - sg D8Wi - 1sh - sideways inv wmk used (ref 264)

I am reasonably certain that this stamp is SG D8Wi, and the description has been made in good faith. If, on receipt of the stamp, the buyer has any doubts about the accuracy of the above description, please let me know so that a solution can be found between us.

General perforation conditions can be seen in the above image. Abbreviations used in my listings are:-

(a) UMM = unmounted mint = MNH mint never hinged 
(b) MM = mounted mint = hinged mint. MM may also be used for stamps that would be UMM except for a small amount of gum disturbance approximating to a light stamp hinge effect on the gum.
(c) LMM = lightly mounted mint
(d) VLMM = very lightly mounted mint
(e) MNG = mint but no gum
(f) used = used

Please do not pay for this item until you receive my invoice. Where multiple purchases are made, my invoice will reflected a combined postage cost, taking into account the overall weight band and package size to be used for determining Royal Mail postage costs. Royal Mail UK recorded delivery / international tracked service is available if requested by the buyer, at an appropriate supplement reflecting the additional Royal Mail charge for such service.

All buyers with a delivery address outside the UK are responsible for paying any import duties, import taxes, value added taxes, etc levied outside the UK.