1856-1858       163 Middle Street, Portland, Maine

1855 Augustus 28. Portland Weekly Advertiser. (Portland, Maine.) August 28, 1855, Vol. 55, No. 35, P. 3.

Ambrotypes, Pictures Taken On Glass. At R. Adams & Co., No. 163 Middle Street…Portland.  These Pictures differ essentially from the Daguerreotype, as they can be seen at any angle, are not reversed, will not corrode or change by time, are as permanent as the glass on which they are made, and will retain their brilliancy for ages.

Letters Patent have been obtained for the United States, Great Britain and France, by Mr. Cutting, the Inventor.

R. Adams & Co. have the exclusive right for making these Pictures in this city.  A. M. McKenney.  Rufus Adams.

Advertisement ran from August 28 & September 11, 1855.

1856 September 30.  Portland Weekly Advertiser.  (Portland, Maine.)  September 30, 1856, Vol. 56, No. 40, P. 3.

Re-issue of the Ambrotype Patent.  The great merit of the Ambrotype Pictures has been most signally shown, by the united efforts of some of the principal Daguerreotypist to break down and prevent a re-issue of the Patent.  They have been defeated by the Government in their attempts, and a new patent has been issued, covering the entire claims of the Patentee, in making pictures on Glass, and hermetically sealing them between two plates of glass, with Balsam of Fir or its equivalent, giving exceeding brilliancy and beauty of tone, which cannot be affected by the atmosphere, water, or acids; making it as enduring as the glass in which it is secured.

The word Ambrotype, coined expressly to designate the Picture, is also patented.  All persons, not having purchased the rights, that are making use of the term, and covered with varnish and black paint, will be prosecuted to the full extent of the law.

The genuine Pictures all have the patent stamp.  Cutting & Bowdoin, The Originators And Proprietors.

R. Adams, 163 Middle Street, Has the exclusive right of the Patent, and Ambrotypes can be had at no other rooms in this city. Advertisement ran from September 30 to December 30, 1856.

1856 December 4.  Maine Farmer.  (Augusta, Maine.)  December 4, 1856, Vol. XXIV, No. 50, P. 1.

Maine State AG. Society.  Awards Of Premiums…. Division IV.  Class VI—Miscellaneous And Incidentals…

G. M. Howe, Portland, daguerreotypes,…………Dip.

J. W. C. Morrison, Portland, photographs,………Dip.

R. Adams, Portland, ambrotypes,……………….Dip.

L. Wing[1], Waterville, do.,………………………2.00.

1857 January 20.  Christian Mirror.  (Portland, Maine.)  January 20, 1857, Vol. XXXV, No. 25, Whole No. 1793, P. 3.

Ambrotype.—Mr. Adams, holds the Patent (see his advertisement) for Ambrotype pictures.  His work is the best recommendation of his artistic skill, which may be examined at his rooms 163 Middle street.

1857 January 20.  Christian Mirror.  (Portland, Maine.)  January 20, 1857, Vol. XXXV, No. 25, Whole No. 1793, P. 4.

Cutting’s Patent Ambrotypes! At Prices to suit the Hard Times!  At Adams’ Rooms, 1863 Middle Street, And at no other rooms in this city.

These Pictures are warranted permanent, and for Beauty will speak for themselves. 

Pictures Set In Lockets, Pins, Rings, &c.  Call And See Specimens.

N. B. Copying done in the best manner. Advertisement ran from January 20, 1857 to May 4, 1858.

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[1] Probably Simon Wing.