Two types of pull fuzes were used with the German stickgrenade, Brennzünder 24 and Brennzünder 39.
Both have the same delay, but are constructed differently.
This "39" is the second type friction fuze used on the M24 and M39 High Explosive stickgrenades.
The aluminium tube held the friction igniter. The delay tube is within the aluminium body.This tube was fitted to a zinc connector, which in turn was fitted in the top of the stick.
A detonator No. 8 was to be fit in this connector before re-assembling and throwing.
Photos © Miguel A.J.