Bobbin Case Singer 3810 3820
Bernette 20, 25, 65, 66, 80E, 82E, 90E, 92C, H70, Euro Pro 9110, 9130, Necchi 4825 Pfaff 100S Smart, 200C Smart, Singer 3810, 3820, 3825, 6038, 6510, 6550, 7312, 7322, 7350, 7360, 7380, Viking C10, C20, Emerald 183, 203, White 3100 Alternative numbers 502020.63.07, 502020.67.38, 502020.74.53, E1A2824000