The arms go back to a seal used in 1747.
The seal was used by the College from 1783 to 1929.
The great seal was used for the first time in the year of 1782.
At the time there were several seals being used by various city officials.
The seal has, however, been used with permission in many commercial works of popular culture.
The actual seal used by the president was changed to have a similar design, though apparently not at the time.
The seals may have been used in trade and also for official administrative work.
The seal was revised a month after and is currently being used today.
"We have to get the seal used to diving for it."
In all cases the seals used must be acceptable to Customs.