Signal flags, Portland Observatory, ca. 1810

Contributed by Maine Historical Society

Signal flags, Portland Observatory, ca. 1810

Purchase a reproduction of this item on


Six signal flags for shipowners used at the Portland Observatory. The Observatory on Munjoy Hill raised the appropriate flag to communicate the arrival of ships in Portland Harbor.

View/Add Comments

About This Item

  • Title: Signal flags, Portland Observatory, ca. 1810
  • Creation Date: circa 1810
  • Subject Date: circa 1810
  • Location: Portland, Cumberland County, ME
  • Media: Art on paper
  • Local Code: Coll. 902, Box 1/2
  • Collection: Portland Observatory signal books and thermometrical records
  • Object Type: Image

Cross Reference Searches

Standardized Subject Headings


For more information about this item, contact:

Maine Historical Society
485 Congress Street, Portland, ME 04101
(207) 774-1822 x230

Use of this Item is not restricted by copyright and/or related rights, but the holding organization is contractually obligated to limit use. For more information, please contact the contributing organization. However, watermarked Maine Memory Network images may be used for educational purposes.

How to cite content on this site

Please post your comment below to share with others. If you'd like to privately share a comment or correction with MMN staff, please use this form.