Newspaper advertisement for Alta Vela Guano Co. fertilizer as published in <i>The Star and Sentinel</i> (Gettysburg, Pennsylvania) on September 18, 1868
Newspaper advertisement from <i>The Star and Sentinel</i> (Gettysburg, PA), September 18, 1868
<a rel="nofollow" class="external free" href="https://panewsarchive.psu.edu/lccn/sn83032076/1868-09-18/ed-1/seq-4/print/image_681x790_from_4877,3009_to_5911,4209/">https://panewsarchive.psu.edu/lccn/sn83032076/1868-09-18/ed-1/seq-4/print/image_681x790_from_4877,3009_to_5911,4209/</a>