Test tile divided into 21, 2x.75 cells, colors: Blues, purples, brown/green
color trial proofs; ceramic tile; blue (color); purple (color); brown (color); green (color); cells (interior spaces)
Made at the College of Mining Engineering, State University, Grand Forks, N.D. stamped in back. Mattson. painted in blue. UM painted in brown. 3, 2 HK, H.I., 4,7,10,13,16(underlined), 19,19,20,21,21(underlined), 18,15,12,9,6 painted in blue on the outside edge of tile.
Mattson, Julia, "C MTT 205-1119 Side A" (2017). UND Pottery Collection. 1500.