Unbroken Antique Snap-Top Vial/Phial (Still full of original substance)

This wee phial is still full of its original substance and is in absolute excellent condition.

It has beens suggested to me that the contents is Morpheine but I cannot find an once of information on this phial

The phial is clear class and is around 4.5-5cm long...The snap-top is glass and has a slight bend where it would be snapped if it were to be used.

i would love to find any info on this phial as to the contents, the time these were used and the value.

Thankyou for looking