50-250 usd
In stainless, and in New in Box (NIB) a Ruger Speed-Six in 9x19 is worth $1,000+ as of 2010. In stainless, and in like-new condition, a Ruger Speed-Six in 9x19 is worth $700+ as of 2010. The 9x19 version of the Speed-Six is quite rare in the U.S. since only a few were sold in the US from European and Israeli military/security contract overruns.
In Very Good gondition, about $250. Stainless guns about $50 more.
$100-$300
It is Sturm, not Strum. A Ruger Security Six is about $300-$350 for excellent condition. Price will vary depending on stainless/ blue, and condition.
If you mean a Sturm Ruger, about 300 USD
100-1000 depending on specifics
200-500 usd or so
I don't know, is it just the barrel or the whole gun? I'd buy just a barrel
100-360 USD or so depending on specifics
Model numbers 117 vs 207 and external physical features
$250-$350
50-350 USD or so