Pfaff 1051 Instruction Manual page 12

Specifications
3. Versions and subclasses
02
PFAFF 1051/1151:
Subcalss -8/11 ............................................... for sewing light materials (standard part set)
Subclass -8/12 ........................................... for sewing light materials (bridge-type part set)
PFAFF 1053/1183:
Subclass -8/31 ............................................................................. for sewing light materials
Subclass -8/33 ............................................................. for sewing medium-heavy materials
Subclass -8/44 ............................... for sewing medium-heavy leathers or similar materials
Work aids:
Subclass -900/24 ..........................................................................................thread trimmer
Subclass -909/04 ............................................................................................. thread wiper
Subclass -910/06 ..................................................................................... automatic foot lift
Subclass -911/37 .................................................................................. automatic back tack
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