[Jordan Baker]

Did some more digging on the Smoke Generator #8, MkIV and found the following.

http://www.bocn.co.uk/vbforum/smoke-...-no-t4319.html

http://http://www.lexpev.nl/grenades/europe/unitedkingdom/generatorsmokeno8.html

The Mk 4 had a steel body and was 4 inches in diameter and 4 inches high. It was filled with priming, igniting and smoke composition with a total explosive filling of about 3 1/2 Lb. A hole in the top was covered with a cellulose acetate disc, presumably for waterproofing. For use the disc was pierced and a 6 inch length of safety fuze (Fuze Safety No 11 Mk 2) was inserted and lit with a Match Fuzee. The safety fuze burned for about 15 seconds and the priming composition for a further 5 seconds before passing the flame to the igniting composition and from that to the smoke composition.