If you’re not watching BBC 2’s gangster western Peaky Blinders, stop reading now and seek it out on iPlayer – there’s still one episode left so you have time to join the party. Peaky Blinders is the slow burning tale of a volatile, family led criminal gang, headed by calculating brother Tommy Shelby (Cillian Murphy), and their rise to power in post-World War I Birmingham. It does not sound glamorous and it isn’t, yet is all the more compelling for embracing the filthy side of what many considered to be the cusp of the ‘Roaring Twenties’. Not in Birmingham it wasn’t. Thankfully Peaky Blinders had costume designer Stephanie Collie (Lock,…