600 and 677
The model 600 was produced from 1960 to 1970. The model 677 was produced from 1961 to 1964.
To see a picture of the spring connections in the trigger area of the model 600 CLICK HERE
To see a picture of the trigger area of the model 600 CLICK HERE
To see a picture of the old style piercing assembly and stop screw, CLICK HERE.
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