You have a Smith and Wesson model 14 38 special. The 38 refers to the diameter of the barrel. That barrel is 38/100 of an inch in diameter. A 45 automatic has a barrel that is 45/100 of an inch in diameter. A 9mm has a barrel with a 9mm diameter. You can shoot 9mm ammunition from a 38 special. A 22 pistol has a small diameter barrel.
Third engineering change in the Model 14 line.
Cartridge
No such S&W trade mark
Probably Kansas Highway Patrol. Smith sometimes makes a commerative run of pistols and sometimes a large customer will order special markings on a standard model.
Seldom exceeds price of similar condition model without Last Stand markings; @ 500 USD
Enhanced
Cartridge
Enhanced
Double Action
'ctg' cartridge
I believe it alludes to production periods
1980-1981. to find out for sure you need to call S&W. ABL is just a three letter prefix used in the serial number. In 1980 S&W started with AAA000.