1969
I also have one of these pistols. Have you had any responses off line to your inquiry?
No known published data.
75-125 USD
25-50 USD or so
$100
No
25-50 USD or so
10-90 usd
1910-1935
Numerous books on the company have been written that have sn data.
Impossible to answer without a detailed description of all markings.