They're beer bottles, from the late 60s or early 70s. Only way to know the exact brand is if you recognize that logo or if the bottle was a particularly notable shape.
The keg style bottle was done for Carling's Brewing Co., Black Label, Red Cap, Stag, and Heidelberg were filled using this bottle style from approximately '68 through the early 70's. Your other bottle looks familiar to me, but I can't place it at the moment.