Sleeping car reservation Odessa - Simferopol for train 650SH, issued at Graz Hbf.
The reservation was sufficient to travel 569 km from Odessa to Simferopol - no ticket was needed. 
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It was not possible to buy an additional ticket at the stations in L'vov and Odessa. UZ ticketsellers there were convinced that the reservation was sufficient... 
Also the conductor of car 7 on train 650SH didn't ask for a ticket...
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Photo: Helmut Uttenthaler, Graz - Austria, helmut.uttenthaler@gmx.at