Plenty of copies and variations are on the market, but these are the originals – the Mathmos Astro lava lamps.
Yes, this is the original design, first produced by Edward Craven Walker in 1963. Every bottle is apparently filled by hand for the 'best lava shape formations the clearest liquids and the longest bottle life'. The aluminium base and top of the lamp have also been made by skilled British craftsmen.
Various colour options available for the wax and liquid, all selling for £55 each.