Straight Edge Razor and Shaving Mug/Brush

The straight edge razor has a Celluolid or Bakelite type Black handle. On end of blade it says Made in Butcher - Sheffield and another word I can not read. On the blade itself it says Barbers Rattler, under these words it has an arrow with a symbol on each end. White shaving mug by Hazel Atlas with Shaving Brush.