If I follow what most folks write about the s&W pistol numbering system, I usually see that an xxx4 designates alloy frame, carbon slide, with both frame and slide blued/blackened.

Yet in the S&W letter in this thread Roy Jinks, Smith historian, clearly indicates that the 4014 has a stainless slide and alloy frame- blued/blackened.

is this an anomaly or are other xxx4's sporting "blued" stainless slides?