Comparison : Item # 4010-02, Flask, Round Bottom, Two Neck, Angled
Item # 4010-04, Flask, Round Bottom, Two Neck, Angled
Item # 4010-06, Flask, Round Bottom, Two Neck, Angled
Item # 4010-08, Flask, Round Bottom, Two Neck, Angled
Item # 4010-10, Flask, Round Bottom, Two Neck, Angled