Mr Muscle Oven Cleaner, Heavy Duty Oven Cleaner & Degreaser for Burnt Grease & Food Spills, No-Scrub Formula for Quick Kitchen Cleaning, Fast-Acting Clean in Just 30 Minutes, 1 x 300ml :
Mr Muscle Oven Cleaner Spray - 300ml | Robert Dyas
vintage 1970s magazine print ad MR MUSCLE Overnight Oven Cleaner Charlotte Rae | eBay