Why this one is harder than it looks

A covered hen dish is the single most reproduced form in American glass. That is not a warning so much as a description of the category. Early producers include Atterbury & Company and Challinor, Taylor & Company, both of Pittsburgh, working in the 1880s and 1890s. After them came Westmoreland, Imperial, L.E. Smith, Fenton, Indiana Glass and many others. Mosser, established in the 1950s, is still making them.

So the question is almost never is this a hen on nest. It is which decade, which company, and is the lid even the right lid. Three things you can answer standing in a thrift aisle, if you know where to look.

Where the shape comes from

Covered dishes shaped like animals go back further than glass does. Chinese porcelain makers were doing them centuries ago, and European houses like Staffordshire and Dresden sold ceramic versions to American buyers between roughly 1790 and 1820 — at prices only the wealthy could manage. Pressed glass, invented in the late 1820s, is what made the hen dish a mass-market object instead of a luxury one.

The American factories most reliably documented making hen dishes in the 1860s–1880s window are Atterbury, Challinor, Sandwich, Central Glass, and later McKee. Beyond the US, the form was also produced in England, Czechoslovakia, Poland, Germany, France, and eventually China, Taiwan, and Japan — so a hen dish with no maker's mark isn't automatically American or automatically old.

Get the terms right before you price anything

Collectors bounce the words "reproduction," "reissue," and "replica" around like they mean the same thing. They don't, and mixing them up is a fast way to over- or under-price a piece. Glass historian and hen-dish collector Shirley Smith, in a widely cited framework for the category, separates them out this way:

• Original. A piece made by a company from a mould of their own design — nobody else's design, nobody else's mould.
• Reissue. The same company making the same original piece again, sometimes decades apart. Westmoreland, Imperial, and Fenton all did this — which is exactly why "made by Westmoreland" doesn't by itself tell you the decade.
• Reproduction. A different, later company acquires the original mould and presses new pieces from it. This is the Mosser/Westmoreland situation below — the mould is the real original mould, the piece is not from the original era.
• Replica. An entirely new mould, made to resemble an existing piece from another company. Usually the giveaway is in small details and color rather than the overall shape.

A mould can also pass through several hands over decades — copied, sold, modified, revived — so "it's from the original mould" is a weaker claim than it sounds unless you know which company owned that mould when your specific piece was pressed.

Start with the tail

This is the fastest read in the whole category. An Indiana Glass hen has a flat tail pointing straight backward, and a circular valve mark on the back. Once you have seen it you cannot unsee it, and it eliminates a large share of what you will encounter.

Indiana hens can then be dated more finely by the nest. If the beading is slotted and the nest is stippled, you are in the 1960s. If there are no slots between the beads and the nest is striated, it is 1970s to 1980s.

Then the weight and the white

Westmoreland is recognisable before you turn it over. The glass is dense and marble-heavy with a satin finish noticeably smoother than its competitors. Their best-known mark is a large W intertwined with a G, and there is an older circular logo with a W inside — but marks were used inconsistently across a hundred-plus years of business, and the company used paper labels for decades before adopting the moulded monogram.

Fenton is a warmer white and beautifully hand-finished, and here is the part that catches people: Fenton did not permanently mark its glass with the oval logo until 1970. The desirable 1940s-to-1960s Fenton milk glass is unmarked. Hunting for a mark and finding none tells you almost nothing.

Check the lid actually belongs

Marriages — a lid from one piece sitting on the base of another — are common and easy to miss when you are excited. Set the lid down and run a finger round the seam. It should sit flush the whole way. Rock it gently. Any gap or wobble and you are looking at two pieces pretending to be one.

What to check, in order

• Tail shape. Flat and straight back points to Indiana Glass.
• Comb and eye. Crisp points and a defined eye mean a good mould and an early pull from it. Soft, rounded detail means a tired mould or a later copy.
• Lid fit. Flush all the way round, no rock, no gap.
• Nest texture. Stippled versus striated, slotted beads versus smooth — this dates Indiana pieces to a decade.
• Weight in the hand. Westmoreland feels dense and cold. Lightweight usually means later.
• Base wear. Genuine wear is scattered and uneven. Artificial distressing looks too even and too intentional.

Where people get burned

• Reissues from original moulds. Mosser acquired Westmoreland moulds, so a pattern-perfect piece can be from the late 1980s or later. Weigh the mark, the wear and the white tone together, not the pattern alone.
• Carnival finishes on small Westmoreland hens. Original Westmoreland five-inch hens were not made in carnival glass. Most of their carnival hen dishes were produced for Levay in the 1970s and early 1980s.
• Absence of a mark read as fake. Plenty of genuinely old hens are unmarked, and plenty of makers used paper labels that are long gone.
• Flat bright-white glass with a perfect base. A familiar pattern with no base wear at all is usually decades younger than it is pretending to be.

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