Tray comprising a cardboard base for food display

A tray comprising a cardboard base arranged to engage a lid, said base comprising a basal wall provided with at least three walls which extend predominantly upwards from the basal wall, at least a first wall and a second wall of the three walls being made of a first layer of cardboard and a second layer of cardboard, said first layer of cardboard facing the inside of the tray and said second layer of cardboard facing the outside of said tray, said second layer of said first wall and said second wall comprising at least a first longitudinal through hole and a second longitudinal through hole, respectively, said first longitudinal through hole of the first wall being delimited by the cardboard of the second layer of the first wall forming at least a top edge and a bottom edge between which the first hole is located, said top edge being positioned at a distance H1 measured from a horizontal plane passing through a straight portion of an upper edge of said first wall and along the height of said first wall and said second longitudinal through hole of the second layer of the second wall being delimited by the cardboard of the second wall forming at least a top edge and a bottom edge between which the second hole is located, said top edge being positioned at a distance H2 measured from a horizontal plane passing through a straight portion of an upper edge of said second wall and along the height of said second wall, said second layer of said first wall having a first substantially planar projection positioned above said first hole, having a height h1, measured between said top edge and a fold line predominantly forming said upper edge of said first wall, measured along the height of said projection, said height h1 being greater than said height H1, said first projection forming an angle with said first wall of less than or equal to 90° and greater than 30° arranged to retain a first embossing present on an inner surface of a first downwardly extending side wall of a cover wall of a lid, said second layer of said second wall having a second substantially planar projection, positioned above said second longitudinal through hole, having a height h2, measured between said top edge and a fold line predominantly forming said upper edge of said second wall, measured along the height of said projection, said height h2 being greater than said height H2, said second projection forming an angle with said second wall of less than or equal to 90° and greater than 30° arranged to retain a second embossing present on an inner surface of a second downwardly extending side wall of a cover wall of a lid.