A variant of Bamberg with raised x-height, in seven (upright) weights. Digital versions from TypeShop Collection as TS Bernstein and SoftMaker as Bernstein Serial.
Brendel Informatik’s Faces catalog (1989) shows Bernstein Vario, which is largely identical except for the ‘a’. It also shows a Bernstein, which seems to match Bamberg.
Bambi Bold (Gerard E. Bernor, 1995) is a copy of Bernstein Serial Heavy.