Hi, I am very new to bottle collecting, I found this bottle today and can't figure out what it is. I searched online but didn't find anything. It's just under 4 inches long and the width is around 2.5 inches. It says 2 FL. OZ on the front of the bottle near the bottom. On the bottom of the bottle it looks like it says RD 1933 but I'm not completely positive that's the right date because it's a little scratched. Does anyone know what kind of bottle it is? I don't plan on selling it but it would be nice to know what it's worth. Any info on this bottle would be great, thanks!