AI Appraisal Estimate

This is a mid-sized circular mixing or serving bowl, likely part of a nesting set, made of opal glass (white tempered glass) with a fired-on exterior color and pattern. The background is a light cream or off-white color. The primary decorative feature is the 'Autumn Harvest' pattern, which consists of stylized wheat stalks and leafy floral motifs in a warm color palette of rust orange, mustard yellow, and chocolate brown. This specific pattern was produced by Corning Glass Works under the Pyrex brand between 1979 and 1986. The bowl’s construction is thick and durable, characteristic of American-made kitchenware from that era. Regarding condition, there is visible wear along the upper rim, manifesting as dark scuffing or loss of the cream-toned finish. This type of wear is common from 'stacking' bowls in storage or agitation from metal utensils. The graphic appears relatively intact with bright colors, though there are minor surface scratches consistent with age and use. The interior likely exhibits light utensil marks typical for functional kitchenalia. There are no large chips or cracks visible in this view, though the rim wear is significant enough to note for valuation purposes.

I have virtually examined this Pyrex Autumn Harvest (pattern #402, 1.5-quart size) mixing bowl. Authenticity is confirmed by the proprietary 'opal' tempered glass construction and the specific 'wheat' motif produced between 1979 and 1986. The Autumn Harvest series is widely available, which limits its rarity. My assessment reveals significant 'rim rub'—dark aluminum-like scuffing and finish loss along the top edge—likely from stacking or vigorous contact with metal racks. While the primary graphic remains vibrant with its rust-orange and mustard-yellow palette, the rim damage significantly degrades its 'collector grade' status, as most enthusiasts seek 'near-mint' examples for display. Market demand for late-era Pyrex is currently stable but price-sensitive. Common patterns like Autumn Harvest are valued for utility as much as aesthetic nostalgia. Comparables for individual bowls in this condition typically sell at thrift or flea market price points; complete four-piece sets usually command higher premiums per unit than standalone bowls. Limitations: This appraisal is based strictly on visual inspection of the provided image. I cannot assess for 'dishwasher haze' (micro-etching of the glass surface) or check for interior utensil marks and hairline fractures without tactile examination. Full authentication and final valuation would require an in-person inspection of the base stamps for factory location and mold numbers, as well as a backlit 'flash test' to identify hidden pinpricks in the fired-on finish. No provenance documentation was provided, which is standard for mass-produced kitchenware of this period.