There are 3 similar but slightly different tiles available. Approx 680 reclaimed clay roof tiles, dimensions of 275mm in length and 170mm in width (photos 1,2,4&5) There is a further 150 slightly newer Keymer clay roof tiles, dimensions 160mm x 260mm (photo3) Also 100 Goxhill clay roof tiles approx dimensions of 168mm x 270mm (photo 6) Allow for say 5% broken/unusable tiles. 20p per tile (min 100) or the lot for £150
eBay