The present paper is concerned with the study and publication of an unpublished offering basin belonging to an individual named Mr-sw-anx, who lived during the fifth Dynasty. It was found in his mastaba at Giza, excavated by S. Hassan in 1929-1930, and is currently preserved in the Egyptian Museum of Faculty of Archaeology at Cairo University under the number (519/1234). The offering basin is in  a good condition. It is made of white limestone, rectangular in shape with two semi- equal rectangular depressions that gradually incline from top to bottom. It contains two depressions for liquid offerings: water and wine. Five hieroglyphs' lines are carved in sunken relief around the rim of the basin, illustrating the formula of Htp di nws and Mr-sw-anx's titles as “Overseer of the Young Men of the Palace of his Companion RA-wr" and “Inspector of the kA-servants." Some feasts are mentioned as occasions for receiving offerings. According to some criteria, the offering basin of Mr-sw-anx is dated to end of the Fifth Dynasty.