It looks very much like the Lumitron light designed by Robert Welch. It’s currently for sale on eBay for Charity by Isabel Hospice* whose items we’ve featured a fair few times here. It’s a ‘buy it now’ item priced at £100. It’s not cheap, but there are currently 25 people who have saved it to their watched items.
*Isabel Hospice is a charity needing to raise nearly £4 million per annum to provide their free services to the people of eastern Hertfordshire. Their ethos is that they treat the whole person, not simply the illness. They offer a complete hospice service through their team of Community Nurse Specialists, a 16-bed, in-patient hospice, a day hospice, outreach day hospices, hospice at home and a family support and bereavement service.