This machine was provided with the SK 151 (chunky) manual. "The machines are identical in function and operation" (with a few minor differences)
This is a manual machine. If the Silver/Singer/Studio Electronic carriage is substituted it can be made an electronic machine and used with DAK and the EC1. With that carriage, the machine becomes an 860
							
							
								
									
									
                                    	
                                    	- Pitch: 6.5 mm | Mid-Gauge
  
								
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