They are often associated in discussions with a pipe found by Gass and another Lutheran minister, the Reverend Ad Blumer in 1880 in a separate group of mounds, referred to as the 'elephant pipe' by Gass. Blumer gave the pipe to the academy and shortly after his donation, the academy acquired a similar pipe from Gass which he reported had been found by a farmer in Louisa County, Iowa. Charles Putnam wrote a vindication of these artifacts in 1885.
These artifacts are often discussed in relation to a pipe discovered by Gass and another Lutheran minister, Reverend Ad Blumer in 1880 in a separate group of mounds, referred to as the 'elephant pipe' by Gass. Blumer donated the pipe to the academy, and shortly after, the academy acquired a similar pipe from Gass who reported it was found by a farmer in Louisa County, Iowa. Charles Putnam defended these artifacts in 1885.