Smith Mdl 66 & Colt Ace

I have a S&W Mdl 66, .357 Cal. SN 2K64739. The whole gun is stainless. No red ramp front sight insert or hammer, both are stainless?

Additionally have a Colt Ace .22 LR, orig box, SN SM 27512

Condition on both is very good.

Would appreciate any information as to dates of manufacture

Thank You
Greeker375