From the University's explanation:
In 1892 Tennents were exporting to 126 destinations … This is a photograph of a Cuban beer label promoting Tennents Pale Ale and Tennents Stout, produced at the Tennents Wellpark Brewery in Glasgow. Scotch Ales, porter, and stouts which were extremely popular in the Caribbean. The people of Cuba favoured the use of stoneware bottles as seen in the image here.
Strange that 117 years later, the brewery's current owners are thinking of getting rid of Tennent's, ostensibly because it's a 'regional' brand. More later on why this argument is nonsense.