Does "Made in" on porcelain tell me how old it is?

It helps. Pieces exported to the US after 1891 usually had to name the country of origin, so a country name alone often means after 1891, and "Made in [country]" often means after about 1914. It is a rule of thumb, not proof.

Is a blue crossed-swords mark always Meissen?

No. The crossed swords are among the most copied marks in porcelain. Check the painting quality, the glaze, the weight and the base before trusting the mark.

What if my piece has no mark at all?

Many genuine early pieces were never marked, and some marks were on paper labels that fell off. Look at the shape, the decoration, the foot rim and the glaze instead, or ask a specialist.

How to read porcelain marks on the bottom of a plate or vase

The mark under a cup, plate or figurine is the quickest clue to who made it and when. It is also the easiest part to fake, so read it as a starting point, not a verdict.

Look at how the mark was made

Painted by hand, often in underglaze blue: common on older European factories. Slightly uneven lines are normal.
Printed or stamped (a transfer or rubber stamp): crisper, often with a name, a crown or a wreath. Printed marks became common in the 1800s.
Impressed (pressed into the clay before firing): you can feel it with a fingernail. Often a name or a number.
Incised (scratched in by hand): found on studio and some early pieces.

Note the colour too. Underglaze marks sit under the shiny surface; overglaze marks sit on top and can wear away.

Read the words and numbers

A country name (“England”, “Bavaria”, “Japan”) usually points to export after 1891. “Made in…” wording usually points later, to roughly 1914 onwards.
“Bone china” in the mark is mostly a 20th-century habit.
Registration numbers (for example “Rd No” on British wares) can be dated with published tables.
Small painted numbers are often pattern numbers or painters’ marks. They help experts but rarely date a piece alone.

Check the piece against the mark

A real mark on the wrong kind of piece is a warning sign. Ask:

Does the weight and translucency match the factory? Hold thin porcelain up to a light.
Is the wear where hands and tables would put it: the foot rim, the rim, the gilding?
Does the style of decoration fit the date the mark suggests?

If the mark says 1760 but the base is spotless and the gilding is bright and even, be careful.

Common mistakes

Trusting a famous mark without checking quality. Crossed swords, the Sèvres interlaced Ls and the Royal Vienna “beehive” shield are copied constantly.
Reading a pattern number as a date.
Assuming no mark means no value.

When to ask an expert

If a piece looks early, has a famous mark and seems to be in good condition, get an opinion from an auction house or a specialist dealer before you sell it. Many auction houses give free photo valuations.

To check a mark quickly, photograph the whole piece and the mark, and Gavel will read it, identify the maker and era, and tell you what to check next. Dating furniture works the same way, from the parts no one sees: see how to identify antique furniture.