RIGIVA (RIVA) U.6 Universal Miller Catalogues - two editions,
RIGIVA (RIVA) U.6 Universal (horizontal with swing table) and 0.6 plain Milling Machines (table 1100 x 250 mm). Sales & Technical Specification Catalogues - two editions, early and late (late models have 1100 mm table and built-n table power-feed motor).