Oscar Ehrlich was a well known, long-established and prolific manufacturer of lathes with premises at Chemnitz in Germany. Ehrlich exported widely, though it appears to have been common for the company to leave off any identifying features from their machines and instead market them though distributors - such as Tyzach in Great Britain who sold them under the IXL brand. Fortunately Ehrlich were a conservative company and the design of their lathes, and many small details of construction -  are instantly recognisable on machines constructed from the late 1800s until the late 1920s.
Of utterly conventional arrangement, most of the lathes shown below were built during the 1920s and 1930s and made in two centre heights of 130 and 155 mm - and with 6 between-centres' capacities of: 500, 750, 1000, 1250, 1500 and 2000 mm.  Available with or without a feed shaft to provide power sliding and surfacing speeds independent of the leadscrew, the lathe could also be fitted to either plain cast-iron legs or a more substantial plinth with storage for a large set of screwcutting changewheels. Being designed in the early years of the 20th century, the lathes were also offered on treadle stands for locations where there was no electricity supply or convenient stationary engine to drive them.
Ehrlich lathes were often badged as though made by Berlin-based Schuchardt & Schütte, one of the largest German-based tool and machinery dealers of the time, and a company who would have had sufficient buying power to dictate terms to manufacturers. During the 1930s Ehrlich became "Union-Werk" (still based at  Mittweida, near Chemnitz)- under which brand the company prospered further with the name used in post-war years by the communist East German Government to market a wide range of machine tools (see picture at the bottom of the page)
If any reader can provide further details of Ehrlich-branded machine tools of any kind the writer would be interested to hear from them.