Year Rear Sight Front Sight Slide Barrel Link Front Strap Trigger Hammer Sear Serial Number
1955 Service Service Service NM7267717 Mark Service Service Service Service Service Barrel/Bushing
1956 Service 1/8" Wide Service 1/8" Wide Notch Service NM7267717 Mark Series Service Service Modified Service Service Modified Barrel/Bushing
1957 1/8".395 high 1/8" .295 high
Service
NM7267717 Mark Series Neopreme Pad Service Modified Service Service Modified Barrel/Bushing
1958 1/8".458 high 1/8" .358 high
Service
NM7267717 Mark Series Neopreme Pad Service Modified Service Service Modified Barrel/Bushing
1959 1/8".458 high 1/8" .358 high
Service
NM7790429 Mark Series Milled Plastic Service Service Modified Barrel/Bushing
1960 1/8".458 high 1/8" .358 high
Service
NM7790429 Mark Series Milled Plastic Service Modified Service Modified Barrel/Bushing
1960 L 1/8".458 high 1/8" .358 high
Service
NM7790429 Mark 13 Modified Milled Plastic Service Modified Service Modified Barrel/Bushing
1961 1/8".458 high or Micro 1/8" .358 high
Service
NM7790313 Mark 13 Modified Milled Aluminum Service Modified Service Modified Barrel/Bushing
1962 Micro 1/8" .358 high
Service
NM7790313 "S" Milled Aluminum Service Modified Service Modified Barrel/Bushing
1963 Triangle 1/8" .358 high Colt NM 7791435 Colt NM7791414 S Milled Aluminum Service Modified Service Modified Barrel/Bushing
1964 Triangle 1/8" .358 high Drake NM 7791435 Colt NM7791414 S Milled Aluminum Service Modified Service Modified Barrel/Bushing
1965 Triangle 1/8" .358 high Colt NM 7791435 H&R NM7791414 S Milled Aluminum Service Modified Service Modified Barrel/Bushing
1966 Elliason 1/8" .358 high Colt NM 7791435 Colt NM7791414 S Milled Aluminum Service Modified Service Modified Barrel/Bushing
1967 Elliason 1/8" .358 high Colt NM 7791435 Colt NM7791414 S Milled Aluminum Service Modified Service Modified Barrel/Bushing
1968 (RIA) Kensight 1/8" .358 high Colt NM 7791435 Colt NM7791414 S Milled Aluminum Service Modified Service Modified Barrel/Bushing
 

Note 1: SA stopped stamping the last 4 digits of the serial number on the right side of the slide in 1962, but starting in 1963 or 1964, they stamped the last 4 digit of the frame serial number on the slide under the firing pin stop. They are stamped, two on top of the firing pin hole and two below the hole. **known good examples of 1963 and later NMs have been observed that did not have the last 4 digits of the frame serial number under the firing pin stop.
Note 2:
1957 & 1958 pistols may be found with front strap pad removed. Some of the 57/58 pistols can have plain or stippled front straps.
Note 3: All NMs used the same barrel bushing NM7267718

 

Total National Match 1911 Pistols Produced and Sold from 1955-1968
1955 800 pistols (Sold by DCM 128)
1956 1250 pistols (Sold by DCM 202)
1957 1850 pistols (Sold by DCM 296)
1958 635 pistols (Sold by DCM 88)
1959 1065 pistols (Sold by DCM 9)
1960 2717 pistols (Sold by DCM 249)
1961 972 pistols (Sold by DCM 137)
1962 3025 pistols (Sold by DCM 172)
1963 2418 pistols (Sold by DCM 309)
1964 800 pistols (Sold by DCM 195)
1965 1773 pistols (Sold by DCM 1011)
1966 3125 pistols (Sold by DCM 500)
1967 3625 pistols (Sold by DCM 580)
1968 Unknown - RIA produced this year

The American Rifleman Magazine - July, 1966