It sounds like you have a Mauser made Browning in Safari Grade. The "P" at the end of the serial number is an unknown character. Value depends on condition. Use the blue book link for values
100-450 or more depending on specifics
You will need to include the model number and the serial number to give you a answer to your question.
what is the year made and value of ser. #'s 7g 10367 &236272 Belgium browning
1949.
197594V
You will have to call Browning with the sn to find out.
Your Browning A 500 shotgun which was made in the year 1987 will bring between 275-395 dollars depending on the overall condition of the shotgun.I am not sure what the letters MC mean.
500 USD
Browning's web site has a sn search function.
100-800 usd
browning sweet sixteen serial number 5s43804 what year was it manufactured
i dont know the value but its from 1963