German mine fields encountered in the Tobruk area are reported to
have been, with very few exceptions, combinations of anti-tank and
A row of "Sperrmine" anti-personnel mines, called "S" mines, with
push igniters was frequently laid in front of the Teller mines (platter
shaped anti-tank mine, weighing about 10 lbs.). This apparently was
intended to make the work of taking up the minefield more dangerous.
Trip wires intended to give warning of the approach of hostile
troops were also utilized. It is reported that "T" mines are usually
laid with the top of the igniter flush with the ground and the earth
smoothed back into place. No elaborate concealment has been encountered
and the disturbed earth usually makes the mines easy to locate. No
pull-igniters have been found in the cavities provided for them in the
side and base of "T" mines although the Germans are known to have
used this type of igniter in the area.
In one case a field of "T" mines was found to have been arranged
for deliberate firing, and engineer reconnaissance discovered electric
leads connected to the arming points in the sides of the mines. They
were wired in parallel to enable the mines to be fired singly or in
"S" mines are usually laid with only an inch of the antennae
visible, and the disturbed earth carefully smoothed back into place.
Nevertheless, the disturbed earth usually makes their location easy,
as no elaborate attempt at concealment has been encountered.
Push, pull, and pedal-types of this mine have been encountered,
the two former predominating.
(B.M.I., No. 43)