Rotary excavator PRE-1250-16 / 1.0 was released in 1973 at the PO "Donetskgormash". Yavlyatsya modification excavator ER-1250. Letters with a dash after the contents indicate the height and the depth of digging (16 m and 1.0 m, respectively). During his time at Ekibastuz pits revealed until 2007 that 46 million. M3 rock. Photo from the archives of the author of the site.