I too would be mighty pleased to have one of those straight sided CocaCola bottles on my shelf. I do have a nice Mrs. Winslow's. Here is some interesting info on this soothing syrup I found on line...
The primary ingredients of the syrup were morphine and alcohol, with approximately 65 mg of morphine per fluid ounce. A teaspoonful of the syrup, then, had the morphine content equal to that of approximately twenty drops of laudanum. Given that the 1873 edition of The Health Reformer suggested that babies six months of age receive no more than two to three drops of laudanum, the dosages listed on the bottles of Mrs. Winslow’s Soothing Syrup are alarming: For a child under one month old, the recommendation was 6 to 10 drops; children three months old were to be dosed half a teaspoon; and children six months old and up were to be given a teaspoonful three or four times a day! The recommended dosage for children with dysentery followed the amounts outlined above but was to be repeated every two hours until visual improvement was noticed. A teaspoonful of the syrup would have contained enough morphine to kill the average child, so it isn’t hard to understand why so many babies who were given Mrs. Winslow’s Soothing Syrup went to sleep only to never wake back up again, coining the syrup’s nickname, “the baby killer”. There is no statistic of the number of children that died from the use of soothing syrup, as many caregivers did not link the death to the syrup or they chose not to reveal the use of the syrup, but thousands of children are believed to have died from overdoses or from morphine addiction and withdrawal.