In 1897 a group of small ironworks in/around the Fulpmes (Stubai) area banded together to make mountaineering and other items. In 1955, Werkgen Fulpmes changed their name to “Stubai” and subsequently marketed their items under the Stubai brand name.
Stubai started producing Mawra ice screws in 1961. These were the first mass-produced ice screws and were a vast improvment over ice pitons. The advent of tubular ice screws around 1965 rendered the Mawra's obsolete for climbing, but they remain useful for removing wine bottle corks.
Sebastian (Wastl) Mariner designed the Mawra, hence its name.
Stubai started producing tubular ice screws in the 1970s. Early versions had a problem with ice getting stuck inside when the screw was removed, making a second placement problematic. Stubai's solution was to remove one side of the tube. Placing these screws feels a bit strange to me.