Made in 1972, this Schilke B2 is an excellent player! Quick response with a beautiful sound.   
 
From Schilke:
 
The B2 Traditional Custom Series trumpet is a medium large bore instrument that is the perfect choice for the performer that desires more resistance than the B1. Featuring a medium-large bore and medium throat bell with a #3 taper which is faster to the valve section. The bore and bell combination still plays broad and bright, yet with more control than the model B5.
 
Key: Bb
Bore: .460-inch (11.68mm)
Leadpipe: Reverse taper
Leadpipe Material: Yellow brass
Bell: 5-inch (127mm) medium throat with #3 taper in fixed or tunable design
Bell Material: Yellow brass or Beryllium copper
Valves: Monel
1st Valve Slide Adjustment: Thumb saddle
3rd Valve Slide Adjustment: Fixed ring
Finish: Silver plate