25-50 USD or so
15-150 USD or so
1910-1935
1969
75-125 USD
no
Early Harrington & Richardson revolvers did not HAVE model numbers, but model NAMES. In your case, the model name is "22 Special".
The value of a Regent 9-shot .22 caliber revolver can vary based on its condition, age, and market demand. Typically, prices for such firearms can range from $150 to $400. Factors like original packaging, historical significance, and any modifications can also influence its worth. For an accurate assessment, it's best to consult recent sales or a firearms appraiser.
Serial number 787416
There are too many variables to give you an answer.
20-100 or so
50-100 or so
25-100 USD