6 sided teardrop tinted and textured bottle

So this 6"h is teardrop shaped
But is 6 sided 3 1/2 x 2 1/2" w
Textured (like smooth beaded)
And tinted (clearish to beige)
Has round indent on front (1 1/4")
Opening is 1 1/4"
Only marking is 6 or 9 on bottom
In my cellar with some other vintage bottles
Bought the house 40 yrs ago
Just looking now
Cannot find out what it was for