Private Signal 
1833MPS: Merchants' private signals M. V. Brewington c. 1833
In The American Neptune 3, no. 3 (July 1943): 205–21.
Peabody Essex Museum

Descriptions of Marryat, Elford, Rogers, and commercial code signal systems, and private signals. Includes illustrations of flag systems with color keys.
1857TPS: Private Signals of the Whaling Vessels & c. Belonging to the Port of New Bedford

Charles Taber & Co., Prang & Mayer 1857
1858GPS: Private Signals of the merchants of New York and San Francisco [California]
CreatorGifford, Charles B. (active ca. 1858-ca. 1868), publisher Nagel, Louis (active ca. 1844-ca. 1873), German, printer
Date Created and/or Issuedc1858
Publication InformationBancroft Library
Contributing InstitutionUC Berkeley, Bancroft Library
CollectionHoneyman (Robert B., Jr.) - Collection of Early Californian and Western American Pictorial Material

Description: Images of 127 signal flags with merchants identified below. Image in upper center of border shows sailing ship moored at Lombard Dock (San Francisco), flanked by medallions with allegorical images identified as "Eureka," and "Excelsior," (representing state of California and New York?) and a train.
Printed title (UC). Printed (LC, within image): Lith. print. in colors by L. Nagel, San Francisco; (LC): Entered... 1858 by C. B. Gifford... ; (LC): Respectfully dedicated to the merchants of San Francisco by Charles B. Gifford.
1860FPS: Table of private signals, Merchant of Boston, c.1860
Allan Forbes, Ralph M. Eastman
As reproduced in Yankee Sailing Ship Cards by Allan Forbes and Ralph M. Eastman (Boston: State Street Trust Company, 1948).
1900GPS: Private signals of the merchant of New York
John Gray
1976PSY: Private Signals of Yachtsmen - 1976 No 72
1977NPS: R.R. Newell Print “The Private Signals of Nantucket Whaling Merchants

Certain pavillons datent de 1819.
2013RMS: Murphy's Signals Hobart Town - colonial ship flags and semaphore signal charts. The colonial ship flags and semaphore signal charts of convict guard Private Edward Murphy of the 99th Regiment of Foot, Van Diemen's Land from the 1840s and 1850s.

These charts contain the only known drawings of the merchant ships' Van Diemen's Land Colonial Ensign and the entire collection of the individual merchant ship's identification flags flown in old Hobart Town.

Published: 2013
Format: hardcover
Pages: 100
Richly illustrated large format hardback showing the hand-drawn flag charts created by Edward Murphy in the 1840s and 1850s. These charts are the source for the Van Diemen's Land Ensign and the book shows numerous Hobart shipping house flags.