LT SF bloc pockets 162x115mm Doragrad, black backing film

Leuchtturm Albenverlag (Germany)
SF Bloc pockets for Stamp Blocs Format 162x115m, black backing film
Doragard (closed top and bottom, open back), pack of 10, Made from 100 % polystyrene, free from acid and chemical softeners, with adhesive reverse side, (article 306 253 162x115D blue package.

Remarks to Pre-cut SF-mounts: LIGHTHOUSE pre-cut SF-mounts for most standard sizes. The size of the mount is cut 4 mm larger than the actual stamp for that nice "centered" look.