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Baby Lock Needle Plate B ASSY. Bobbin cover has no markings.
Part Number: XC2364452 Bobbin cover has no measurement markings.
Alternate Part Number: XC2364352, Bobbin cover has no measurement markings.
XE0759401, XE0759201, XE0759001 Bobbin covers for these 3 needle plates contains 1/4" marking. XC2364052
Guaranteed to fit because it is a part.