Viking Designer Topaz 50 Sewing Machine Instruction Manual (Model Designer Topaz 50) - 104 Pages. Lost your sewing machine's manual? We've got you covered! This instruction manual is the ultimate guide to unlock the full potential of your Viking Designer Topaz 50. No more confusion or frustration—just clear, concise instructions right at your fingertips. What's inside? Everything you need to know from setting up to mastering your sewing machine and all its features.