You will have to call Browning to find out.
Made 1970
If its a 12 ga, then it was made in 1961
your browning 12 ga with the 4G prefix indicates that it is a lightweight 12 that was made in 1964.
73-75
made 2001
No serial number provided.
73-75
You will have to call Browning for the date. 50-500 USD
Your browning model auto-5 12 ga was made in 1928.
Your browning shotgun was made in 1990.
Please add the model of Browning shotgun you have to this info,to get the answer you seek.
This is a Belgian Browning Lightweight 12 Ga. made in 1965