British Army uniform and equipment in World War I It contained an inner can of explosive with an outer can of metal fragments or ball bearings. The fuses that were developed for the Jam Tin Grenade were activated by friction or a by lighted taper which was often replaced by a lighted cigarette. This was followed by the highly successful Mills bomb in 1915. It was oval in shape to fit into a clenched fist and time fused. The detonator was activated by a spring driven firing pin which was restrained by a lever that in turn was locked by a safety pin. The Mills bomb was a defensive
Telephone numbers in Australia Code" and then the specific "Local" number). In major centres, the first four digits specify the CCA (Call Collection Area, also known as an "exchange"), and the remaining digits specify a number at that exchange, up to 10,000 of which may be connected. Smaller Exchanges in more remote areas may be specified by five or six "local" digits, meaning that no more than 1,000 or 100 numbers respectively could be connected to such exchanges. To access numbers in the same area, it is necessary only to dial the eight digits concerned. To access a number in another "Area" it is