Heading : Trinity College Oxford sealed wine bottle 
Date : c1820-50
Period : Regency to Victorian 
Origin : England 
Colour : Bottle green 
Neck : Tapering neck, double collar, string lip
Body : Cylinder 
Base : Low kick up 
Glass Type : Lead.
Size :  27.5  cm
Condition : Excellent
Restoration : None 
Weight : 848 grams

Antique Sealed Bottles by David Burton Pg. 1274

This is not the Cantabrigian college nor that from Dublin. I honestly do not know why three ancient academic institutions share the first part of a name, the "college" element is a little easier.