The columns are similar to the base of the columns around the Narcissus Hall at Leighton House, London (Narcissus Hall was built between 1877-81). Note that there is a horizontal break indicated in the drawing that suggests that the columns are higher than they appear. The shorter proportions are almost identical to the columns at Leighton House. It's possible that the sketch is a copy of a column elsewhere that inspired the columns at Leighton House. The sketches and list on the verso may refer to props for the painting "The Arts of Industry as Applied to Peace."