In US TM 9-1985-1, I came across a number of British pistols or fuzes that were long delay or antidisturbance. Some of the long delay pistols noted were No. 35, 37, 47, and 62. Some of the antidisturbance fuzes noted were No. 871, 880, 881, and 883. Is there any information on how many were made or how/where/when their were employed?