Diamond Shamrock ad
"Why is Diamond Shamrock one of the strongest chemical companies on earth? Because it is so strong under the earth."
From a 1978 magazine
Approximately 11.5 inches x 8.25 nches
Original print ad from vintage magazine
Not a reproduction
Age tanned darker around the edges. Staple holes visible on bound edge which is also somewhat rough. Light ripples from handling. No writing, no holes.