Bought this (https://photos.app.goo.gl/qP2dhfS9Ej9KR8bPA) from @Josie & John recently with a leak. Luckily after a rebuild it all works perfectly and I managed to try it out at the range today with good results.

Off-hand:
https://i.postimg.cc/vmxf0V0J/20230508-104259.jpg

Rested:
https://i.postimg.cc/W1H0mnwm/20230508-104401.jpg

Also loaded it with extra weight to bring it up to be similar to a S&W model 36. Technically it is closer to a model 50 which has the adjustable rear sight; also known as the 'Chief's Special Target Model'.