With the suffix of 5Z to the serial number provided,your Browning light weight auto-5 20 gauge shotgun was made in Belgium for Browning in the year 1965.
made 1965.
Depending on the condition and the particulars (vent rib, etc), could be anywhere from $350 to over a thousand dollars. sales@countrygunsmith.net
The prefix of 5Z to your serial number indicates that you have a Browning auto-5 light weight shotgun that was made in the year 1965.
Your browning light weight 20ga.was produced in 1965.
z = 20 (6x20) + (5x20) = 20
Your A-5 was made in 1965 and it says light 20 on the non bolt side of the receiver. Too many variables to determine value. Original Vent Rib, No Pad, condition etc. Give me a call at 417-830-5588 and I will try to help.
Assuming 5z - y = 0, then 5z = y
You have a 20ga Lightweight Auto-5 made in 1965
-8z + 5z = -3z
If you mean: 4+5z+3-8 then it is 5z-1
(6w - 5z)(6w + 5z)