Class 831 railcars were becoming scarce by 2007 but were still working from Sumperk and Klatovy depots. This was the only time I managed to get two of them in the same picture. 831.183 was working Os17521, the 13:57 from Klatovy to Horazdovice Predmesti into Besiny when it passed 831.167, on which I was travelling from Horazdovice to Klatovy.