The object is an ink architectural drawing of a cross-section of the Kingston City Hall dome showing the plans for supports inside the structure. The drawing shows the weather vane at the top of the dome, the lantern below with a small railing, the dome with two dial boxes for the clock faces, and the drum with spaces for galleries and a clock room. The terms printed on the drawing are "DIAL BOX", "GALLERY" twice, and "CLOCK ROOM/14 Feet". Below the drawing at the bottom of the page is "-SECTION.-". At the top left corner is "No 2.", and in the bottom left corner is "Scale, 8 feet to one inch." Blue and yellow watercolours are used in select areas like the support beams and the stone facades. Written on the paper backing of the frame is "DOME CITY HALL KINGSTON/POWER&SON ARCH/SEPT.1908."
Power and Son was an architecture firm in Kingston at the turn of the 20th century. Upon the death of John Power on 14 March 1882 his son Joseph continued the practice in Kingston, Ont. under the firm name of Power & Son., which was established in November of 1873. After the fires that destroyed St. George’s Cathedral in 1899 and City Hall’s dome in 1908, the firm was commissioned to design the repair and restoration of these buildings.