I got a w104 as a kid (1965) box had a price of 35.00. Seen them at gun shows and pawn shops , (depending on condition) 95.00 to 225.00
On the frame
10-150 USD or so
10-150 USD or so
25-150 USD or so
250 USD
The W104 indicates that you have a 104 series double nine.Your serial number indicates that it was made some time in 1969.
Twenty nine thousand (29,000) written in standard form is 2.9 × 104
It will be marked on the barrel.
39,033.9 or 3.90339 × 104
This model came out in 1958,and was produced until 1970.
100-1000 USD
Impossible to answer without knowing who made it.