This masu for commerce, called mise-masu or machi-masu, seems to have been a bit smaller than new kyomasu, and to have had the volume similar to old kyomasu (according to the previously mentioned book written by Keigo HOGETSU).
これが見世升とか町枡といわれる商業升であり、これは新京升よりやや小さく、古京升に近い量をもっていたと考えられる（寶月圭吾『前掲書』）。