What I know about antique glass bottles wouldn't cover both sides of a matchbook. But here are some excellent links on the subject, so you too can learn the difference between a pontil and a blob:
Miscellaneous Links:
Right: Plastic Coke bottle with screw top
How do two ships in the wide ocean collide? It seems unlikely, and yet it happens all the time. Often, the ocean is not all that wide. Many collisions occur in shipping lanes and port approaches, where ships are brought together in close proximity. Here are some videos of actual collisions between ships:
More: Collision at Sea ...
