100-1000 + USD depending on specifics.
1000 USD
To determine the exact value of a Browning automatic 20 gauge shotgun made in Belgium, a couple factors would need to be taken into consideration. Some of these things are the age and condition of the shotgun.
Your gun was made in 1968. Check the link below for a Blue Book value based on condition. A professional appraisal is always recommended.
I am assuming we are talking about a browning auto-5 shotgun.These first appeared in 20ga.in 1958.There should be a number and letter prefix to your shotgun.A example would be 8z,9z,or a 68z,69z etc. If you would include this with your serial number I could give you a exact year of production.
Belgium 20 ga A5's will have a number and letter together before the serial number such as: 0Z - 8Z and 68Z-70Z for lightweight guns 7X and 68X-76X for 20ga Magnums These numbers plus a letter shows it was made in Belgium. Ther are a few other exceptions, but if you wish to find the origin of a specific gun, ask your question with a serial number included.
There isn't one. First Sergeant isn't an MOS - you don't enlist as a First Sergeant. It's a rank and position which is achieved through time and experience. It doesn't change the holder's MOS - if they were, say, 68 series, 88 series, 11 series, etc., they would retain that CMF identifier. What does change is that, when one is promoted to E8, they're no longer considered specific to a certain MOS, but rather, a generalist in the entire field. So, if someone were 68W (Healthcare Specialist) and were promoted to E8, they would no longer be 68W, but rather, 68Z, making them a generalist in the entire Career Management Field.