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	M. Dolfi Collection Colt .45 -.22 Conversion Unit serial number U75 
	- This unit was designed by Colt to convert the Service Model Ace in .22 LR 
	to .45 ACP. The unit was fitted with Stevens sights and a match grade 
	barrel.  Production was extremely limited with just 112 units produced.  
	This unit is accompanied by its original box numbered to the unit as well as 
	the Colt factory deluxe presentation case. 
	
	  
	Colt .45 -.22 Conversion Unit serial number U75 - right side of slide 
	showing markings, "Colt Automatic Calibre .45" over "Conversion Unit 
	.45-.22" 
  
	  
	Colt .45 -.22 Conversion Unit serial number U75 - top of slide. 
	  
	Colt .45 -.22 Conversion Unit serial number U75 - left side of 
	slide. 
	
	  
	Colt .45 -.22 Conversion Unit serial number U75 - top of Colt 
	factory walnut presentation case with "Colt" logo and top of original 
	shipping box for the conversion unit. 
	
	  Colt .45 -.22 Conversion Unit serial number U75 
	- Inside view of original shipping box showing U-75 serial number inside on 
	left side. 
	
	  
	Box end label is marked "Colt .45-.22 Government Model Conversion 
	Unit". 
	  
	Colt .45 -.22 Conversion Unit serial number U75 - close-up of right 
	side slide markings and "COLT 45 AUTO MATCH" roll mark on barrel with "MB" 
	in a circle on the left side of the barrel lug.  |