Mills MRA two types of different brand ?

Some vendors still have a supply of NOS, USA made Mills resistors.  Vishay bought the company, in 2011, and moved production to Mexico.

Vishay bought Mills in 2011 and they have been making them ever since, in brown. There were four, color/finish versions of the older, made in the USA, Mills wire wounds: Dull(flat) in either black or brown / shiny and smooth in either black or brown.