Assertion: bottle | /r/HasProperty | dumbrell
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text: Blob seal - A typically round or oval pad or disk of glass usually found on the body or shoulder (rarely the neck or base) of a bottle which was impressed with a stamp while hot to form lettering or designs pertinent to the bottled product or, in earlier times (prior to the mid-19th century), the ownership of the bottle itself (Dumbrell 1983).