The seal of Indiana is used by the governor of Indiana to certify official documents of the U.S. state of Indiana. The seal has gone through several revisions since the region was a part of the Northwest Territory. It is likely that the original seal, which is similar to the current one, was created by William Henry Harrison during his administration of the Indiana Territory. The current design of the seal was standardized by the Indiana General Assembly in 1963. The state seal is maintained by the Governor of Indiana. It is used to certify the authenticity of official state documents. The seal is placed on departmental reports, bills the Governor signs into law, and official communications from the Governor to other high-ranking office holders. The seal is also used on all commissions granted by the state as proof of the commission's authority. (Source: Wikipedia.org, CC BY-SA)