Mathmos Originals - Retro To Go wrote a great article about the iconic Mathmos Astro lava lamp, read it here: https://www.retrotogo.com/2021/03/ mathmos-astro-1960s-lava-lamps.html | Facebook
Mathmos Astro Lava Lamp The Original | eBay
Mathmos Astro Silver Lava Lamp | 1960s Original Lava Lamps