AMF REECE 104 mechanic buttonholer mechanic cutting before and after sewing for heavy duty materials, no cam for changing the button lenght because of lever system, brandnew

S004 AMF REECE 104 mechanic buttonholer mechanic cutting before and after sewing for heavy duty materials, no cam for changing the button lenght because of lever system, brandnew
https://www.youtube.com/watch?v=dUATLQ6ohj4&ab_channel=AtlasLevySewingMachineCompany