What is the value of a Ruger MK I serial 13-36209?

The value of a Ruger MK I with the serial number 13-36209 can vary based on its condition, original parts, and market demand. Generally, prices range from $200 to $600, with well-maintained or rare models potentially fetching higher amounts. For an accurate assessment, it's advisable to consult recent sales data or seek an appraisal from a knowledgeable firearms dealer.