Daguerreotype
- Surface: Polished silver-plated metal
- Case: Hinged book-style case
- Size: Usually small, often under 4 inches
- Era: 1840s to 1860s
- Look: Mirror-like, image shifts with angle
If you tilt it, the image can look negative or disappear.
What kind of old photograph do you have?
Answer a few simple questions about your photograph. We will show you the most likely format, when it was taken, and how to take care of it.
Identify your photograph
Pick the option that best matches your photograph. You can change your answers at any time.
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Answer the questions above and press Check my photograph. The most likely formats will appear here.
Compare common formats
Use these cards to double-check your guess. Each card shows the surface, case, size, and era.
Tintype
- Surface: Thin iron sheet, not silver
- Case: Often in a paper sleeve or simple case
- Size: Usually small to medium
- Era: 1850s to early 1900s
- Look: Dull gray, darker background
It is magnetic. A small magnet will usually stick.
Ambrotype
- Surface: Glass with dark backing
- Case: Hinged case, like a daguerreotype
- Size: Small to medium
- Era: 1850s to 1860s
- Look: Looks like a faded photo on glass
The image can look like it is floating inside the glass.
Cabinet Card
- Surface: Paper print on thick card
- Case: None, just a stiff card
- Size: About 4 by 6 inches
- Era: 1870s to 1910s
- Look: Studio background, printed borders
Often has the studio name printed at the bottom.
Carte de Visite
- Surface: Paper print on thin card
- Case: None, just a small card
- Size: About 2.5 by 4 inches
- Era: 1860s to 1890s
- Look: Small portrait, often full body
People collected these in albums, like trading cards.
Stereograph
- Surface: Paper print on card
- Case: None, usually loose
- Size: Two images side by side
- Era: 1850s to 1930s
- Look: Two nearly identical images
Meant to be viewed in a special viewer for a 3D effect.
Era timeline
This timeline shows when each format was most common. Some formats overlap for decades.
- 1840s–1860s Daguerreotypes appear first. They are one-of-a-kind images on metal.
- 1850s–1860s Ambrotypes offer a cheaper glass alternative.
- 1850s–1900s Tintypes become popular because they are sturdy and low cost.
- 1860s–1890s Carte de Visite portraits spread fast. Albums fill up with small cards.
- 1870s–1910s Cabinet cards take over. The larger size shows more detail.
- 1850s–1930s Stereographs sell by the millions as home entertainment.
- 1900s and later Paper prints in many sizes become the standard.
Preservation tips
Once you know the format, you can store it the right way. These tips help you avoid common damage.
Handle with care
Wash and dry your hands before touching old photographs. Avoid touching the image surface. Use cotton gloves for very old or fragile items.
Use acid-free storage
Regular paper, cardboard, and plastic can damage photographs over time. Use acid-free sleeves, boxes, or envelopes labeled safe for archival use.
Keep them cool and dry
Heat, humidity, and light cause fading, warping, and mold. Store photographs in a stable indoor space. Avoid attics, basements, and direct sunlight.
Do not force cases open
Old cases can crack or pinch the photograph inside. If a case is stuck, do not pry it open. Ask a conservator for help.
Label on the back, lightly
If you need to write on a photograph, use a soft pencil on the back. Do not use pens, markers, or adhesive labels on the original.
Digitize when you can
Make a digital copy as a backup. A simple flatbed scan at 600 dpi is usually enough. Store the digital file in more than one place.
Identification checklist
Use this checklist before you consult a specialist. It helps you notice the details that matter most.
- Look at the surface. Is it metal, glass, paper, or card?
- Check for a case. Does it open like a book, or is the photo loose?
- Measure the photo. Note the height and width in inches or centimeters.
- Observe the colors. Are they silver, sepia, neutral black and white, or partly in color?
- Look for stamps, studio names, tax marks, or handwritten notes.
- Test gently for magnetism. A small magnet can help identify a tintype.
- Examine the edges. Are there borders, rounded corners, or a decorative mount?
- Ask family members if they recognize the person, studio, or location.
- Take a clear photo of the front and back for your records.
- Store the photograph safely until you can get more help if needed.
How to read an old photograph
Old photographs can tell you more than who is in the picture. The size, case, surface, and markings all give clues about when and how the image was made. A small metal plate with a mirror-like shine is very different from a paper print glued to thick card stock. Learning to spot those differences is the first step in identifying your photograph.
Start with what you can see without touching anything. Does the image look like it is on metal, glass, or paper? Is there a case, and if so, does it open like a book? Is the photograph loose in an envelope or album? These three questions alone can rule out many formats right away.
Next, look at the size. Many old formats came in standard sizes. A photograph that is about 2.5 by 4 inches is likely a carte de visite. One that is about 4 by 6 inches is likely a cabinet card. A very small image inside a hinged case may be a daguerreotype or ambrotype. Measuring the photograph helps you narrow things down quickly.
Color is another strong clue. Daguerreotypes and early tintypes usually appear in silver or gray tones. Later paper prints often have brown or sepia tones. Some hand-colored prints add pink, blue, or green on top. If you see full, natural color, the photograph is probably from the mid-1900s or later, not the 1800s.
Markings on the front or back can help a great deal. Studio names, tax stamps, and printed borders were common on cabinet cards and cartes de visite. Some studios stamped their name on the negative, so it appears on every print. If you find a studio name, you can often search for it online to learn when and where it operated.
There are a few common mistakes people make when trying to identify old photographs. One is assuming that every brown photograph is a daguerreotype. In fact, many brown prints are paper photographs from the late 1800s or early 1900s. Another mistake is confusing a tintype with a daguerreotype. Tintypes are not magnetic, while daguerreotypes are made on non-magnetic metal. A small magnet can help you tell them apart.
Sometimes a photograph is a copy of an older image. A family might have printed a new copy of a daguerreotype on paper in the 1920s. In that case, the image may look like a daguerreotype, but the paper and markings tell a different story. Always check the physical object, not just the picture itself.
If you are still unsure after using this guide, that is normal. Many old photographs are hard to identify. You can take clear photos of the front and back, write down the size and any markings, and ask a local archive, historical society, or photography historian. They see hundreds of these images and can often help you figure out what you have.
Once you identify the format, you can store it properly. Daguerreotypes and ambrotypes need protection from pressure and rubbing. Tintypes can handle a little more, but they can rust if stored in damp places. Paper prints and cabinet cards need acid-free sleeves and stable conditions. Taking a few minutes to identify and store your photographs now can keep them in good shape for the next hundred years.