Genuine Antique Grey Barr Limestone. Antique Grey Barr is from the 18th and 19th Century and is taken from the redundant quarries of the Languedoc. This finely shaped limestone is a popular choice for both modern and traditional interiors alike and is suitable for interiors and exteriors, depending on climate. Stunning reclaimed tiles by natural stone, porcelain and terracotta specialist Lapicida. Visit our showrooms at 533 King's Road, Chelsea, London and St James Retail Park, Harrogate.