1856-1858       Rooms in the Museum Building, Troy, New York.

1856 May 1.  Washington County People’s Journal.  (Greenwich, New York.)  May 1, 1856, New Series—Vol. 3, No. 18, Whole No. 708, P. 3.

Ambrotypes.  Now there is something else.  Ambrotypes:  What are they!  It is a question solved by examining a few Specimens Made by those who own The Right For Rensselaer Co. 

It was this New Style of Pictures that obtained The First Premium at the Fair of the American Institute last Fall also at the Rensselaer County Fair.  They are acknowledged by competent judges to be the Plainest and Boldest Pictures in existence.  Much has been said in regard to coloring of Ambrotypes.

They can be colored as Highly as any Portrait.  All who wish this New Style of Picture can have them Colored or Plain, at the Museum Building the only place in Troy where Cutting’s Patent Pictures are made.  Clark & Holmes, Museum Building, Troy, N. Y.                        

Advertisement ran from May 1, 1856 to May 7, 1857.

1857 July 23.  Lansingburgh Democrat.  (Lansingburgh, New York.)  July 23, 1857, Vol. 21, No. 39, P. 2.

A Card.  Those who wish a good Ambrotype, would do well to call at Fitch’s Rooms.  Mr. Finch has made arrangements with Mr. Dewel formerly operator for Clark and Holmes to continue the business during his absence.

1857 December 25.  Essex County Republican.  (Keeseville, New York.)  December 25, 1857, Vol. 4, No. 3, P. 4.

Ambrotype Patented.  Clark & Holmes Daguerreotypists & Ambrotypist.  A New style of picture, far exceeding in beauty and durability anything ever before made.  The Exceeding Fineness, depth of light and shade, and richness of tone, is wonderful.—They do not reverse the subject, but represent everything in its true position.  They are without the glare of a Daguerreotype, and hence may be seen in any view.—They will last for ages, unchanged, and possess the rare quality of imperishability.

They are pronounced by competent judges to be the grandest achievement in the photographic art, Having a relief and clearness that is truly astonishing.  The Ambrotype must be seen to be appreciated and are the only pictures on glass which are proof against the action of water, acids, climate, or atmosphere; and may be laid in water for months with perfect safety.  These are the only pictures of this kind taken in Troy: the subscribers being the only persons in Rensselaer county who have the right to use this invention.

Citizens of Fort Edwards and vicinity are invited to call and examine specimens in this art; they are assured of polite attention, and, if they wish a superior picture. Clark & Holmes.  Museum Building, Troy, N. Y.   n. 20.  

Advertisement ran from December 20, 1857 to April 30, 1858.