Flasks with NS joint neck
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3
Pear shape flasks with standard ground joint, borosilicate glass 3.3