The most valuable is the rarest that is also in demand. One of the rarest items is a tap handle made for a Las Vegas casino that is a semi-functional slot machine, with only 2 known to exist. Early advertising pieces of the 1800's can bring very good prices. Items from breweries that lasted only for a few years are in demand as are major names such as Budweiser, so both extremes can have high values.
If an article is dealing with breweriana it is the subject of collecting brewery items. These items might include beer cans, bottles, beer coasters, ash trays or even neon signs.
The general term for anything collected containing a brewery name or brand in known as Breweriana
Sonja Anderson has written: 'Beers, breweries, & breweriana' -- subject(s): Beer industry
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Most Valuable Player Most Valuable Professional
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Lilies and Ivy are the most valuable. Acorns are valuable too.
"Most Valuable Player" is an American term, used in the MLS.
Venezuela's most valuable resource is oil.
The most valuable metal on Earth is Californium.