Silhouette Model, 10 5/8 bbl. Used mainly for Silhouette shooting thus the dial and other holes. That's all I know about it.I've never seen a front sight setup like that before, or is it some kind of porting? 8.5" barrel?
I do have the original target gripsCongratulations on an interesting find! Your 29-3 "Silhouette" appears to be in VG condition, and the s/n dates its manufacture to 1985. It would have been shipped with Goncalo Alves target stocks. I've never handled one or seen one in person, but they're pretty cool. It's probably an excellent shooter...enjoy!