Security Six frames

[any ruger]

157 scalloped. Blind old eyes rounded.

 

[6GUNSONLY]

Here's a set of those "semi-targets" on my 4" S/S.

 

[mac66]

So we have at least one 157 prefix which is pre 1982 that is scalloped.

 

[hittman]

157 scalloped. Blind old eyes rounded.

Clarification?

Rounded?
Scalloped?

 

[Ale-8(1)]

I don't get the analogy with Six Series and Redhawk. Two totally different guns except for the fact that they're both revolvers. And the Six series was replaced by the GP, not Redhawk.

I'd go with the dates / times Chet15 figures.

For what it's worth, that full-page ad is dated 1985 and shows a high back, scalloped frame.

 

[Aqualung]

No surprise to anyone, but my 150- prefix, low-back 4" is fully rounded. No scallop.

Aqualung

 

[hittman]

Yeah, they're all 3 scalloped and the Speed Six looks to be high polish too.

But, it's only a picture so .... who knows.

 

[robmkivseries70]

Probably not much of a data point but I just got a 4" stainless Service Six with a 160 prefix.
Best,
Rob
ETA: scalloped

 

[RoninPA]

Here are some of my s/n's
155-716xx dated 12/1979
156-889xx dated 1981
157-296xx dated 1981
158-153xx dated 1982

ALL above are rounded frames

158-658xx IS a scalloped frame dated 1982
159-089xx IS a scalloped frame dated 1982