Gatefold sleeve. Very first issued sleeves were textured on both outside and in. Slightly later pressings were textured on outside only, and after that the sleeves became smooth.
the animé sequences that the beeb've shown a few times now on bbc4 as part of an overview of pink floyd's career (and what a career it's been!) are triffic (t.m.); are they up on the wwweb anywwwhere?
Also, sleeve made of stiffer (although not thicker) card, and has deeper texture than original (Even accounting for ageing of my original).
"Sleeve Printed in England - Manufactured in England" white text bottom right of back cover... Barcode: 5099910491713 top right back cover, with white box under it with 10 4917 1 in.
Inner sleeves identical except the absence of: "Printed and made by Garrod & Lofthouse Ltd." text inside bottom right of gatefold.
Original vinyl has rounded edges, but black label vinyl has sharp edges.