Warning
The danger of tracer ammo is down range. There is good chance they can start a fire. Because of this and insurance liabilities most ranges prohibit the use of tracer ammo.:(
Model 10-1
Here is mine.It is marked "Model 101" also. I bought this for $200.Most of the finish is gray patina.The trigger is smooth and breaks like glass. 158 grain loads hit exactly to the point of aim.;)
It allows the tin and other harder than lead alloys(which float to the top and appear as a dull gray scum on top of the shiny silver colored lead)to mix back into the lead.