Your gun was manufactured in 1993 according to the serial number. They are well made highly sough after shotguns usually valuing between $1500 and $2000 depending on condition.
I don't think there is an invector plus model. Invector Plus is the choke system Browning uses on newer shotguns.
100-500 USD depending on condition.
Its about $550 @ basspro
0 100-1000 USD and up depending on specifics
You must call Browning for the answer.
50-500 usd
Need date of mfg, serial number, and condition to price most any firearm.
Depending on condition $300-$450
You will have to call Browning to find out.
50-150 usd
By the serial number, it looks like you have a 1959 Browning Auto-5 Light Weight Shotgun. Value depends on condition. Used below 80% original finish start at around $400 and go up toward $1000 plus for near mint condition.
Without more specific information on the finish and condition; 100-1000 USD