Est 0.189 to 0.200 were 0-6-0 locomotives for freight traffic of the Chemins de fer de l'Est. They were put in service in 1857 and were retired until 1928.^[1]

The machines were of similar design as the Est 0.33–0.120 and were built in the workshops of the Chemins de fer de l'Est at Épernay^[1] in 1855–1856.^[2] They mainly differed in the wheel diameter, which was reduced to 1.34 m (4 ft 4+3⁄4 in).^[2] The locomotives had a Crampton firebox and boiler with a boiler pressure of 8 kg/cm² (0.785 MPa; 114 psi). Beginning with August 1881 the machines received a new boiler with an increased pressure of 9 kg/cm² (0.883 MPa; 128 psi), tractive effort increased from 3,861 kg (8,510 lb) to 4,698 kg (10,400 lb), while the weight increased from 27.9 t (61,500 lb) to 28.5 t (62,800 lb).^[1]

The machines were coupled with two-axle tenders, containing 6 m³ (212 cu ft) of water and 2.5 t (5,510 lb) of coal, and weighing 22 t (48,500 lb).^[3]

The locomotives were given the following names:^[4]

The locomotives were used for freight trains, similar to the Est 0.63–0.120 for mixed service.^[3] In 1875 the machines were listed at the depots Châlons, Bar-le-Duc, Troyes, Chaumont, Nancy, Epinal, Vesoul and Belfort and were used to run freight trains from Paris to Nancy and to Belfort, from Nancy to Belfort and on branch lines.^[3] Later the machines were used on secondary lines and shunting. The last locomotive in service, the Est 0.198, was removed from service in 1928.^[3]