Vintage Anchor Hocking Fire-King Glass Measuring Cup

This is a vintage one-cup capacity liquid measuring cup manufactured by Anchor Hocking under the Fire-King brand. The item is constructed from thick, clear tempered borosilicate or sodalime glass, designed for heat resistance and durability in a domestic kitchen setting. It features a molded spout for easy pouring and an integrated glass handle. The interior side walls display embossed graduations showing measurements in ounces (8 oz, 6 oz, 4 oz) and fractions of a cup (1 cup, 3/4, 1/2, 1/4). A primary distinguishing feature is the embossed maker's mark on the bottom exterior, which consists of the classic Anchor Hocking 'anchor over H' logo, surrounded by arched text reading 'FIRE-KING' and 'MADE IN U.S.A.' along with 'OVEN-PROOF'. The glass has a slight greenish-blue tint characteristic of mid-20th-century American glassware. In terms of condition, the glass appears relatively clear with some surface scratches and minor clouding (scuffing) consistent with age and frequent use. There are no large chips or structural cracks visible from the top-down perspective, though heavy use typically results in small 'flea bites' around the rim or base. Based on the specific logo design, this piece likely dates from the 1940s to the 1970s, representing a staple of mid-century American kitchenware.

I have conducted a visual appraisal of this vintage Anchor Hocking Fire-King one-cup measuring cup. Based on the embossed 'anchor over H' logo and the 'OVEN-PROOF' designation, I can confirm this is a genuine piece of mid-century American kitchenware, likely dating between the 1950s and 1960s. The clear glass with its characteristic greenish-blue tint is consistent with the manufacturing standards of that era. Physically, the item shows signs of frequent utility; the presence of surface scuffing and minor clouding indicates it was a 'workhorse' item, which is standard for this type of collectible. While no major structural cracks are visible, the 'flea bites' mentioned are common points of depreciation for glassware enthusiasts. The market for Fire-King remains steady due to the 'Cottagecore' and mid-century modern aesthetic trends, though clear glass utility items are more common and less valuable than the brand's 'Jadeite' or 'Sapphire Blue' counterparts. This specific model is a high-volume utility piece rather than a rare specimen. Please note that this appraisal is limited by the digital format. A physical inspection is required to check for 'stress fractures' hidden within the thick glass or chemical etching from modern dishwashers, which significantly reduces value. Full authentication would involve verifying the tactile smoothness of the embossed lettering and checking for internal annealing strain using a polariscope. Provenance documentation, while helpful for historical context, rarely impacts the value of mass-produced glassware of this specific type.