A lovely vintage 'Caro' art glass vase. It's Czech/Bohemian and made by Borske Sklo in the 1960s-1970s. It's a meadow green colour, with diamond-shaped moulded optical lens patterns. It's handmade, mould blown into a mould, with a neatly softened flat rim and pattern continuing under the base. 
Very nice example. It's a useful small to medium sized - 15.5cm x 9.5cm widest. The rim is 7.8cm wide. 
An art glass vintage statement and great splash of colour, perfect for a sideboard or shelving unit and for use. 
P&P to the UK included via Royal Mail's Tracked 24 post.