If the photo is highly valuable to you, consider having the image photographed through the glass first by a professional. If you are willing to take a risk, purchase film wetting agent (from a Photography store), mix it as directed with distilled water and totally immerse the picture and glass (glass side down) in the solution. Periodically, gently raise the unstuck portions of the picture to ensure the solution has a chance to soak the stuck areas, and gingerly attempt to remove the picture a bit at a time without damage. I would not soak the print for more than 10 minutes. Hang it to dry, but make sure not to place any part of the hanger clip on the image area. If you do not get the photo out, don't allow the print to dry with it being in full contact with the glass!
I had a bunch of those which were, unfortunately, baby pictures from years ago. It happens because people spray the cleaner directly onto the framed picture and the water seeps up. My "fix" was to put the glass only into the photograph book with hopes of later scanning the picture to obtain a new original.
You can freeze the photo in the glass for a couple hours or longer. Then use a credit card to pry the photo gently from the glass. If this doesn't work, try taking a picture of the photo with a digital camera or scanning a copy.
Before you do anything take a photo or scan it so you have a suitible back up photo. Here are some options:
soak it with hairspray usally that will take it off.
Put the items in the freezer for an hour. If the photo is going to come off it will then.
It's due to the moisture in the clay evaporating.
The moisture from your breath condenses. It condenses and evaporate due to the drop in temperature, in comparison with your body.
Murano is the island in Venice, Italy where Moretti glass is made. Due to new ownership, the glass is now called "Effetre." Effetre is a 104 COE, soda lime glass. Vetrofond is another Italian soda lime glass that is 104 COE, and that factory is run by members of the original Moretti family. Neither Effetre nor Vetrofond is associated with Lauscha glass, which is made in Germany.
The Ambrotype was invented about 1854. It was made by placing a slightly underexposed (and sometimes bleached) glass plate negative (a.k.a. the wet plate colodion process) against a black background. Sometimes the back of the negative was shellaced instead. Unlike the copper plate Daguerreotype, which was introduced to the world in 1839, the Ambrotype image was equally discernable from all angles. However, the Daguerreotype was noted for the rich detail and subtleness of shading. Both types are typically encased within a frame and the image covered by glass, so it's not so easy to determine the materials of construction. It is a misconception of some that all Daguerrotypes have a characteristic sepia tone due to the use of copper as the medium base, but that is not the case.
glass with powder coating
due to action of air and moisture on it
It's due to the moisture in the clay evaporating.
Cohesion and Adhesion. Adhesion is the property of water that makes it stick to other substances. For example, water on glass. Cohesion is the property of water that makes water stick to itself. For example, water droplets. Now you breath and the air has trace amounts of moisture, so when you breathe out, the moisture go from your mouth to the glass, and due to adhesion, it stays there for a while.
Due to condensation. Condensation isThe process of changing from a gaseous to a liquid or solid stateatmospheric moisture that has condensed because of cold
Your tongue will get stuck to the pole due to the saliva on your tounge DO NOT TRY IT AT HOME
The inner hot bulb may explode due to contact with moisture, if the protective outer shell is broken though. The thin glass can contract when it comes in contact with cool moisture causing it to explode.
White smoke at start up is due to moisture in the exhaust or on a diesel it can be normal due to the engine being cold.White smoke at start up is due to moisture in the exhaust or on a diesel it can be normal due to the engine being cold.
moisture present in steam due to quality of steam.
Permafrost.
Somewhat, yes, due to moisture loss.
glass with an iridescent surface due to a thin film of metallic oxides
Cohesion