jcw wheels

Hi guys how can you tell if a r113 rim is genuine? Are there any stamps at the back tbat indicate? Thanks

For Sale One set of 4 Used Replica 17" JCW Mini Wheels. The wheels were refurbish about 5 years back with new Toyo Proxes fitted about a year later, which only covered around 1000 miles before the wheels were removed and stored inside until now. They are in very good condition with no curbing...