This competition is now closed.
Designed in 1930 by Robert Dudley Best, the Bauhaus-inspired Bestlite lamp became famous when it was chosen by Winston Churchill for his wartime desk.
Also available as a table and two wall lamp, the Bestlite anniversary collection comprises 300 pieces of each design.
Regarded as the first fully adjustable lamp, it was originally designed for diamond cutters in Birmingham's jewellery quarter, but has since been embraced by artisans worldwide.
The arm's direction can be adjusted 360 degrees horizontally, whilst a sprung ball-jointed shade enables the shade to be turned both horizontally and vertically to direct the light's beam.
Each piece from the anniversary collection is finished in nickel and has a twisted cord to "create a retro feel".
The lamps also come complete with a Bestlite key, which enables the user to tighten the lamps' arms.
Gubi has also created a celebratory logo for the 90th anniversary. The original logo was inspired by the Bauhaus movement – with its clean lines, geometric shapes and lack of embellishment.
It featured a circle divided into two vertical segments, with a "B" in one and an "L" in the other, sitting atop a horizontal lozenge enclosing the word "Bestlite". For the anniversary the "BL" has been replaced with "90".
Bestlite was designed by Best of Best & Lloyd, the company that provided traditional-style lamps for the Titanic and the Orient Express.
Best wanted to "design a new collection that symbolised the spirit of the new age by appealing to the more avant-garde architects and setting a new agenda for lamp design," said Gubi.
One reader will win a BL3 floor lamp Bestlite 90 anniversary edition in nickel. The lamp is also available to buy online and measures 112-151 centimetres in height.
Competition closes 7 December 2020. Terms and conditions apply. One winner will be selected at random and notified by email. Due to electrical standards, only entries from the EU and the UK can be accepted.