No serial number = no way to answer.
Call Browning with the serial number.
100-1000 usd
It was made in 1971
Made in 1970
The bt 99 seril # is read as follows if one letter it is an early one like : 2xx d 8 . It was made in 1968. Later they included two letters and the following number is the year made.
Browning.com has sn data under customer service.
Max Schmeling died on February 2, 2005 at the age of 99.
See the Browning website- customer service. Date of production by serial number listing.
Ask again and include the serial or go to the link below.
50-500 USD depending on condition.
Browning doesnt show the BT99 as a 299 model code. They list the BT99 as a model 149. Below is the link to the Browning codes.
It's 99 years old (1909)