Thank you for viewing. [Rare] Pre-war to Showa Era Craftsmanship: "Rubber Balloon Glass Mold, Large" Retro / Antique / Interior / Reuse This item is an old glass mold used by a rubber manufacturing company in Katsushika, Tokyo, from the pre-war period to around the 1970s. Currently, aluminum molds are used, making the glass molds rare. Size: Maximum length 26cm Condition: Vintage stock There may be cloudiness, dirt, small scratches, and abrasions, as well as some burning or rubber residue. (No cracks, chips, or breaks) * Please check the images. We are committed to careful packaging and prompt transactions. Thank you for your consideration.