No
The .410 Browning A5 is an urban legend. Browninig never produced a .410 A5. No
No
75-575 usd
Browning.
100-600 usd
50-500 usd
50-550 usd
50-500 usd
1902
Basically impossible to value with just the serial number.
You will have to call Browning with the sn to find out.