There were tentative and short-lived Austrian caliber reduction experiments done during the 1870’s but without great success. These appear similar to Roth case #44/3 but are tombak (Brass type alloy with high Cu content and between 5% – 20% Zn) instead of brass and flat base instead of the Mauser MB base (refer also to A9 from Dixon) and were rumoured to have been done for a Gasser revolver as well as a Werndl Carbine. This is in all probability the same cartridge as A8 from Dixon. See also Motz Vol. 1