Sounds like a propane torch bottle and a timer. I've read there were two devices, but that isn't reflected here.

-Mal


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http://www.expatica.com/source/site_...n+German+train
Suitcase bomb found in German train


1 August 2006
DORTMUND, GERMANY - A bomb has been found aboard a German train, with prosecutors saying Tuesday, the morning after it was discovered, that it had been powerful enough to maim or even kill.

Bomb-disposal specialists disabled the device Monday evening in the main railway station in the western German city of Dortmund.

"The contents were capable of severely injuring or even killing people," said prosecutor Ina Holznagel.

The device included a canister of propane gas, a timer and wires.

Abandoned suitcases and bags are routinely blown up at German stations and on trains for fear they contain bombs, and the debris is then analysed.