BVA 250 (Electrofar)

The legendary Romanian tin can for independent use, which I received as a gift on May 12, 2011, along with the Polish mercury lamp. The last photo from the post shows the original condition of the ballast. Years later it was covered with silver, then gray "SKZR-type" paint. The body was also straightened as much as possible. I saw such ballasts built into LBL luminaires, but was it a factory assembly?