Looks very promising! I also would like to know what the embossing on the druggist bottle says. I am particularly fond of druggists. The 3-in-1 oil was first marketed in the 1890s and was always a lubricating oil; for use on tools, bicycles, hinges, etc. and is still available and popular today (I have a flask of it sitting not 10 feet away, heh). The "3-in-1" refers to it protecting, cleaning, and lubricating various articles. It is a very common bottle as it was a well-received product, and I've dug around 100 of them; both handblown and machine made corkers.
The real prize is the druggist, and I have the feeling that these finds are just what was found on the surface. Sinking a big hole in the dump may lead to the recovery of some excellent treasures. Best of luck.