You are looking at what I would call a dark green or maybe a emerald green bottle which is about 7" tall and bottom is about 3" across. It has on it G. W MERCHANT CHEMIST LOCKPORT N. The only thing I do know is it is old. There does look to be 2 seams on each side but none on the bottom which is very smooth.
The very top does not seem to have any seams on it either. You are getting what you see. Please take a minute to view my other items. I DO USE A MAGNIFYING GLASS WHILE GOING OVER EACH ITEM.
AGAIN I DO TRY MY BEST TO GIVE A ACCURATE DISCRIPTION. The item "1860'S G. W MERCHANT CHEMIST LOCKPORT N. EMERALD GREEN NICE" is in sale since Monday, March 27, 2017. This item is in the category "Collectibles\Bottles & Insulators\Bottles\Antique (Pre-1900)\Medicines & Cures".
The seller is "1991-harley" and is located in Holland, New York. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ID, to Taiwan, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, PH, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY, CL, CO, CR, PA, TT, GT, HN, JM.