The 9T prefix dates your Browning to the year 1969.
no sn provided
20-200 usd
50-375 usd
Best left to a gunsmith
No serial number provided.
100-2000 USD depending on specifics.
Impossible to answer without more details
Impossible to answer without a detailed description and the serial number.
No way to answer without knowing the model.
50-250 usd
No,not that I am aware of. Browning makes a Challenger mark III, but that is a .22 lr pistol. Browning also makes the Hi-Power which is chambered for 9mm Luger.
200 USD