AI Appraisal Estimate

This is a rectangular, transparent glass medicine bottle, likely dating from the late 19th to early 20th century. The vessel features a tall, narrow neck with a hand-applied tooled finish/lip, indicating it was mouth-blown into a mold (BIM). The body has flat sunken panels on all four sides, a common design intended for paper labels or embossed apothecary branding. At approximately 5-6 inches in height, the glass exhibits a slight grayish or straw tint, likely due to naturally occurring impurities or the use of manganese as a decoloring agent. A notable physical feature is the heavy 'sick glass' iridescent patina or burial oxidation covering the surface, which gives the glass a cloudy, mottled appearance from being underground for a long period. No specific maker's marks are visible in the primary image, but the manufacturing technique suggests a post-Civil War era (c. 1880-1910). The condition is typical for a dug bottle, showing significant interior and exterior scaling and mineralization without obvious cracks or chips.

I have virtually examined this rectangular mouth-blown medicine bottle. The 'tooled finish' and lack of a machine-made seam through the lip confirm its Blow-In-Mold (BIM) origin, dating it between 1880 and 1910. The glass exhibits a slight tint indicative of period-specific manganese decoloring, while the heavy iridescent patina—often called 'sick glass'—is a result of chemical leaching from long-term burial in acidic soil. While some collectors value this burial oxidation for its aesthetic 'rainbow' effect, in high-end glass collecting, this level of mineralization is generally considered a condition defect that obscurers the glass clarity. Market demand for generic, unembossed apothecary bottles remains relatively low. Thousands of these vessels were mass-produced for local pharmacies and patent medicine companies. Bottles with specific local embossing or high-demand contents (e.g., bitters or toxins) command higher prices; however, this specimen appears to be a generic 'panel' bottle. Comparables sold in lots or individually at antique malls typically fall in the $15-$25 range. Authenticity is likely based on the specific wear patterns and manufacturing marks visible, though image analysis cannot confirm the presence of high-pressure stress fractures or detect artificial 'tumbling' used to clean the glass. A full authentication would require an in-person tactile inspection to feel for internal 'seed bubbles' and to examine the base for a pontil scar or mold marks. Provenance regarding the dig site location could slightly increase its historical interest to local regional collectors.