Esterbrook Advertising Blotter for No. 788 Oval Point Pens, ca. 1920s, Uncoated blotting in white with black and grey print. Fine illustration of an Esterbrook 788 Oval Point Pen.  Advertising imprint for Thoms Book Store Appleton, Wis. Measures 3.25 x 6 inches Far right edge and lower right corner slightly darker than the rest of blotter, no ink blots on the back side. Near mint condition. (3 avail)