ORIGINAL: randallw
I suspect those fire extinguishers were collected by some railroad employee who is a secret hoarder. Soon after the picture he probably showed up with a giant bag to put them in, then he jumped off the train with them ( his very own DB Cooper moment ).
Until I read your comment I could not remember. Then, like a flash, I remembered what happened (if my memory does not fail). The fire extinguishers were delivered to the last Russian train station, custom house just before the border. So no thief/ves involved [8D]