Pfaff 1051 Instruction Manual page 12

Specifications
3. Versions and subclasses
02
Version A: ................................................................................... for sewing light materials
Version B: ............................................................................. for sewing medium materials
Version C: ................................................................... for sewing medium-heavy materials
Work aids:
Subclass – 731/01 ........................................................................................... edge trimmer
Subclass – 900/24 .........................................................................................thread trimmer
Subclass – 909/04 ............................................................................................ thread wiper
Subclass – 910/06 .................................................................................... automatic foot lift
Subclass -911/37 .......................................................... automatic back-tacking mechanism
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