Clear Glass Threaded Bottle Appraisal

Clear Glass Threaded Bottle

This item is a clear, colorless glass bottle, approximately of medium size, designed with a functional and robust form. Its primary physical characteristic is a rectangular body with gently rounded vertical edges, flaring slightly at the base before transitioning abruptly into a rounded, tapered shoulder. A distinctive horizontal ridge or ring circumscribes the bottle at the point where the shoulders begin to curve upwards towards the neck, adding a notable design element. The neck itself is cylindrical and relatively short, culminating in a threaded finish, indicating it was designed to accept a screw-on cap for sealing. The bottle appears to be manufactured using a mold, as evidenced by its uniform thickness and symmetrical shape, typical of machine-made or semi-automatic bottle production. Subtle mold lines may be present along the sides, though they are not clearly visible in the provided images. The base is relatively flat, possibly with a slight concavity or punt, and exhibits some minor irregularities or small trapped air bubbles within the glass, which are common in mass-produced glass items and do not necessarily indicate damage. No discernible manufacturing marks, such as maker's insignia or numerical codes like "D 1230" (as suggested by the context), are clearly legible on the base or body from the provided photographs. The bottle is in good observable condition, showing no apparent cracks, chips, or significant haziness. The glass is transparent, allowing light to pass through clearly. Its design, particularly the threaded closure, suggests a production period from the early to mid-20th century, a time when screw caps became widespread for various consumer goods. Given its sturdy construction and common shape, it likely served as a container for liquids such as spirits, food condiments, or household chemicals. Its utilitarian design emphasizes functionality over ornate decoration, representative of typical mass-produced glassware of its era.