Dating a piece by its country mark

Turn a plate over and there may be no maker, no pattern name and no date — but a single word naming a country. That word is not branding. It is there because a customs authority required it, and customs requirements change on specific days, which is what makes it useful.

The rule that started it

The McKinley Tariff of 1890 required goods imported into the United States to be marked with their country of origin. It took effect on 1 March 1891.

Two things follow, and the second is the one people forget.

It gives a floor, not a date. A plate marked ENGLAND was made in 1891 or later. It was not necessarily made in 1891, or 1895, or even before 1950 — the requirement never went away, so the mark stayed in use for decades. “Not earlier than” is the whole of what it tells you.

It only applies to exports to America. A piece made for the British home market was under no such obligation. The absence of a country mark therefore proves nothing at all about age, which is the single most common misreading of this evidence.

The Act also did not require the words made in; naming the country was enough. That detail turns out to matter.

“Made in” is generally later

Because plain country names satisfied the original rule, the fuller phrase spread later, after the United States tightened its marking requirements in the early 1920s. MADE IN ENGLAND is therefore usually taken to indicate about 1921 or later.

This is a rule of thumb used throughout the trade rather than a statute with one clean date, and it should carry a rule of thumb’s weight. Treat it as supporting evidence alongside the body, the glaze and the pattern, not as a dated receipt.

Japan: three words, three windows

Japanese export ware is unusually well served by this kind of evidence.

• NIPPON — roughly 1891 to 1921. Nippon satisfied the origin requirement until US customs took the view that the English name Japan was required instead.
• JAPAN — from about 1921.
• MADE IN OCCUPIED JAPAN — 1947 to 1952 only, the years of the Allied occupation. Five years, from one line of text. There is very little else in antiques that is this tight.

Europe, and the politics of a border

Country names change when countries do, and the object cannot pretend otherwise.

• WEST GERMANY or WESTERN GERMANY — 1949 to 1990. Plain GERMANY is either before 1949 or after reunification, which the style of the piece will usually separate.
• CZECHOSLOVAKIA — 1918 to 1938, or 1945 to 1992. The name did not exist outside those spans.
• USSR — 1922 to 1991, on the same principle.

These are not marking conventions at all; they are political facts that happen to be stamped on crockery. That makes them unusually reliable, because nobody was choosing the wording for commercial reasons.

Two ways this goes wrong

Reading a floor as a date. ENGLAND on a piece that also has a 1930s shape and a 1930s glaze is a 1930s piece. The mark did not date it; it only ruled out everything before 1891. The mark narrows, the object decides.

Assuming the mark is original. Backstamps are printed, and printing can be added. A mark that sits on top of a glaze and can be scratched, on a piece whose other evidence says it is much older, deserves suspicion rather than trust.

Where this leaves a valuation

A country mark can move an object by fifty years, and fifty years can move what it is worth by an order of magnitude. What it cannot do is tell you the figure — for that you need what comparable pieces have actually sold for, which is a different kind of evidence and comes with its own traps. What an auction result actually says is about reading those.