The Great Seal of the State of Maryland is the official government emblem of the U.S. state of Maryland. Its official service is to authenticate acts by the General Assembly of Maryland (state legislature), but it is also used for display purposes at most state buildings.

The Great Seal of Maryland is used by the Governor and the Secretary of State to authenticate Acts of the General Assembly and for other official purposes. The Secretary of State is the designated custodian of the Great Seal, and provides guidance on its use.

The Great Seal of Maryland is used by the Governor and the Secretary of State to authenticate Acts of the General Assembly and for other offical purposes. The first Great Seal was sent from England shortly after settlement of the colony.

The Great Seal of Maryland is used by the Governor and the Secretary of State to authenticate Acts of the General Assembly and for other offical purposes. The first Great Seal was sent from England shortly after settlement of the colony.

Among the clutter of boxes, decaying documents and rodent droppings, the searchers discovered something truly remarkable and of tremendous significance – the long forgotten Great Seal of Maryland. It was a direct link to the 17th-century colony and the Lords Baltimore.

The reverse of the Great Seal of Maryland consists of an escutcheon, or shield, bearing the Calvert and Crossland arms quartered. Above is an earl's coronet and a full-faced helmet. The escutcheon is supported on one side by a farmer and on the other by a fisherman.

Today the seal is embossed or printed onto foil disks that are later applied to the document. The Secretary of State of Maryland is designated by law as the custodian of the Great Seal of Maryland.

The seal of Maryland has symbols on both of its faces, making it among some of the rarest seals in the US as well as the world. The seal has undergone many changes in the past. The first seal was used from 1605 to 1675. It was then modified in 1794, 1817, 1854, and on other occasions. The present-day seal was last modified in 1969.

From 1794 to 1817, both its sides constituted the "Great Seal" until a new single-sided Great Seal was adopted in 1817. The mace of the House of Delegates is capped in contemporary silver with the back of the Great Seal of 1794, which bears the …

The Great Seal of the State of Maryland, the official government emblem of Maryland, serves to authenticate acts by the state's General Assembly and is displayed at most government buildings. It has a dual-sided design, but the reverse side is primarily used in official contexts.