Congrats on the fine looking beauty there. These are very nice shooting guns. I recently acquired a similar gun and have the same questions. It is a mint condition Model 17 no dash. Made in 1957. It’s a 4 screw, 6” barrel with TTT and the target grips. Trigger is great.

I wonder how rare the Model 17 no-dash guns are relative to the 17-1 and pre Model 17 guns.