Miniature cobalt blue glass oil lamp

This is a miniature oil lamp featuring a vibrant cobalt blue molded glass font and base with an integrated handle, paired with a brass-toned metal burner and a small white milk glass chimney globe. The piece fits comfortably in the hand, indicating its miniature or salesman-sample scale. The glass body exhibits a rich, deep blue hue and is decorated with a raised, molded pressed-glass pattern around the bulging reservoir. A metal thumbwheel is visible on the side of the burner mechanism, which controls the wick height. The brass collar and burner show visible oxidation, minor tarnishing, and a dark patina consistent with age. The white milk glass chimney is bulbous at the base and tapers toward the top with a scalloped or jagged rim fitting into the metal gallery. There are no clearly legible maker's marks or stamps visible in the provided image, so the attribution rests entirely on the stylistic design and material construction. The object displays characteristics consistent with mid-to-late 19th or early 20th-century decorative pressed glass oil lamps, commonly collected as miniatures or night lamps. Condition-wise, the glass appears free of major cracks from a visual inspection, though surface dust, minor age-related wear, and metal oxidation are present.

Based on what I can see in the photograph, this miniature oil lamp displays characteristics consistent with mid-to-late 19th or early 20th-century decorative pressed glass, featuring a vibrant cobalt blue font and a white milk glass chimney. However, I cannot verify the exact age, maker, or manufacturing period from a photo alone, and physical inspection would be needed to examine the glass seams, metal composition, and burner mechanics closely. The estimated value range of $100 to $200 assumes the piece is a period-appropriate antique lighting artifact in fair condition, with expected metal oxidation and age-related wear. Miniature and night lamps of this type generally enjoy steady demand among specialized collectors of antique lighting and Victorian glass, though typical market behavior for unbranded pressed glass is modest. If this item were determined to be a later reproduction, modern replica, or a decorative piece made 'in the style of' vintage lamps rather than an actual period piece, the value would likely decrease significantly, dropping to the $25 to $50 range. To establish a stronger hypothesis regarding its age and authenticity, one would need an in-person examination by a specialist, detailed inspection of the burner components, and a search for any faint or obscured maker's marks.