Fiesta dinnerware marks: vintage or post-86, and what about the red?

Fiesta was launched by Homer Laughlin in January 1936, discontinued in 1973 and reintroduced in 1986 in new, lead-free colors. To tell vintage from post-86, combine the backstamp with the color and the foot of the piece. Vintage red (and to a lesser degree other vintage colors) contains uranium in the glaze; the newer line is not considered radioactive.

By the Antique ID team · Updated 2026-10-13

Have a piece like this? Scan it with Antique ID for an instant identification and an estimated value. App Store →

A short history

The company's own timeline credits Frederick Hurten Rhead, hired as design director in 1927, with designing Fiesta in an Art Deco style with concentric rings that highlight the bright colors. Homer Laughlin introduced it at the Pittsburgh China & Glass Show in January 1936 in red, yellow, cobalt blue, green and ivory. Turquoise followed soon after; the Cooper Hewitt, Smithsonian Design Museum dates it to 1938, while other references give 1937. The timeline records that Fiesta “retires after 37 years of production” in 1973 and was reintroduced in March 1986.

Vintage color timeline

The Cooper Hewitt notes that several colors were retired in the early 1950s and medium green introduced in 1959, and that after a 1969 restyle red was the only original color still made. Exact start and end dates vary slightly by reference, so use color together with the other clues below.

Reading the marks

Vintage pieces are usually marked either with an ink stamp or with lettering moulded into the base. Collector references describe the vintage backstamp as using a lowercase “f” in fiesta, and note that some vintage items, such as juice tumblers, teacups, demitasse cups and salt and pepper shakers, were never marked.

Post-86 Fiesta changed the marks. Since 1986 many cups and bowls have carried a rubber stamp reading HLC USA and “genuine”, with a capital F. Collector guides also describe a three-letter date code on some post-86 stamps in which the first two letters give the year (AA = 1986, BB = 1987 and so on) and the third the quarter, and a small raised H on pieces made from original moulds from 1998. The same sources caution that some post-86 moulds reproduce the lowercase vintage lettering, so a lowercase mark alone does not prove age.

How to tell vintage from post-86

• Color: the post-86 palette began with white, black, cobalt, rose and apricot, and later added many new shades. Post-86 sapphire resembles vintage cobalt, and turquoise and gray are hard to separate, so do not rely on color alone for those.
• Wording: words such as genuine, lead free, HLC USA or a date code point to post-86 production.
• Body: the 1986 line was made as vitrified, lead-free china, part of the company's move to lead-free ware for the hospitality trade in the early 1980s.
• Shape: some original shapes were modified for the new body, and many post-86 pieces are forms that never existed in the vintage line.

The uranium in vintage red

The ORAU Museum of Radiation and Radioactivity, run by Oak Ridge Associated Universities, has documented Fiesta red in detail. Its records say the red glaze was colored with uranium oxide, with measurements suggesting up to 14 percent of the glaze by weight. Natural uranium was used from 1936 to 1943, when wartime controls took the uranium supply, and the red returned in 1959 made with depleted uranium. ORAU also notes that Homer Laughlin used uranium in some yellow, green and brown glazes, and that almost any old ceramic with a deep orange-red glaze is likely to be radioactive.

• Radiation: studies cited by ORAU measured gamma readings of 0.5 to 15 mR/hr at the surface of a plate, falling to 0.002 to 0.3 mR/hr at one meter.
• Leaching: in laboratory tests, water leached little uranium, while acetic acid leached far more, and repeated exposure reduced the amount released.
• Ingestion: the NRC's NUREG-1717 analysis, as summarized by ORAU, estimated that someone using only such dinnerware could ingest about 0.21 grams of uranium a year, the highest exposure pathway it considered.
• Regulation: under 10 CFR 40.13, glazed ceramic tableware made before 27 August 2013 with no more than 20 percent source material by weight in the glaze is exempt from NRC licensing.

ORAU's blog adds that the plates are considered safe for use unless chipped or cracked, and that the newer line is not considered radioactive. A sensible approach is to keep chipped vintage red for display and avoid storing acidic food in it. For glassware with the same element, see uranium glass.

What drives value

Color is the biggest factor: short-lived vintage colors and scarce combinations of color and form attract the most interest. Condition (chips, utensil marks, crazing), the form itself (serving pieces and rare shapes more than plates) and whether a piece is vintage or post-86 come next. Limited post-86 colors also have their own collectors.

Next steps

Check the color, foot and backstamp, then scan the piece with Antique ID for an identification and an estimated value. An estimate is not an appraisal; for a rare color or form, compare with specialist Fiesta references or ask an experienced dealer.

Identify your antique in seconds

Antique ID identifies an item from a photo, reads visible maker's marks, suggests a period and gives an estimated value range, so you know whether it deserves a closer look.