However, all used milk bottles will show some scratches. Ask us how to book an event for you. How To Spot Reproduction Bottles With any type of collectible item, there will always be reproduction items surrounding it. Some milk bottles had etched labels with a frosted design handwritten or stamped into the glass bottle.
If necessary, look very closely at the bottle shoulder - the best location to see vertical side seams on mouth-blown and most machine-made bottles - in good light with a hand lens to see if there is at least some faint evidence of where the mold edges came together.