Highly collectable “Cogwheel” Sklo Union Ashtray, 1970’s. Former Czechoslovakia. Alexandrite / Neodymium glass. Colour change from lilac in daylight to blue in artificial light settings. Excellent condition. No chips or cracks. Base diameter: 7 cm Top diameter: 12 cm Height: 5.5 cm Weight: 0.5 kg I pack all my items with extra care to ensure safe delivery. Please feel free to browse through all my other listings.