The world jigsaw by Hamlyn

[Bee35]

In the 70s I owned a jigsaw caled 'The World' made by Hamlyn. It was circular in shape, cannot remember how many pieces. One side was Europe / Asia / Australasia (sea was dark blue); the other was The Americas (sea was light blue). Sadly it is very unlikey to still be in production due to age and vast changes in countries / borders / states since then, but I would love to get hold of one. Any ideas how I can find out how to? Websites no help so far.