Clear Glass Square Decanter with Stopper

This item is a clear glass decanter featuring a distinct square or diamond-shaped base that tapers upwards into a cylindrical neck. It includes a matching clear glass stopper with a flared, hourglass-shaped profile. The construction appears to be molded glass, evidenced by visible seam lines running vertically along the corners of the body and through the neck and stopper. The glass shows a slight bluish-green tint at the thicker edges, which is common in many types of utilitarian or decorative glassware. The owner identifies this as 'mod dep', a term consistent with a registered design mark often found on European (frequently Italian or French) mid-20th-century glassware. However, this attribution is unverified as no mark is clearly legible in the provided photograph. The piece is stylistically consistent with mid-to-late 20th-century barware. Condition appears fair, though there are visible scuffs on the glass surface and potential internal cloudiness or residue near the base corners. The craftsmanship suggests a mass-produced decorative object rather than hand-blown art glass.

Based on my visual analysis of the clear glass decanter, I can provide a market estimate for an item of this type. The owner identifies this as 'mod dep,' which typically suggests a registered design of European origin, possibly mid-century Italian or French. Based on what I can see, the piece is stylistically consistent with late 20th-century mass-produced barware. I cannot verify the 'mod dep' mark from the photo, nor can I definitively attribute the piece to a specific designer or glassworks. The visible seam lines and greenish-blue tint at the edges are indicative of molded, utilitarian glass rather than artisanal, hand-blown crystal. The provided estimate assumes the item bears a mark consistent with the owner’s 'mod dep' claim. If the attribution is correct and the mark is legible, it would likely fall in the $60-$85 range for collectors of vintage barware. If the piece remains unattributed or is a later generic copy 'in the style of' mid-century European glass, the value would likely drop to the $15-$30 range. Condition issues, such as the noted scuffs and internal residue, negatively affect the valuation. Market demand for mid-century molded glass decanters remains steady for decorative use, though mass-produced items lack the high premiums of signed art glass. To confirm this attribution, I would need a physical inspection to verify the hallmark's placement, evaluate the glass resonance, and check for specific wear patterns. A definite identification cannot be made without examining the base and clarity in person to rule out modern reproductions.