Volume 1 and 2. There are two series. The first run is $1.95 each, undated covers. These are listed in series
https://www.comics.org/series/17978/ Super Mario Bros. (Acclaim / Valiant, 1990 Series) A reprint run started the following year. Each is $1.50, with months on the covers (starting with February 1991). The second run uses different covers and may have different contents.
ISSN 1049-1503.