FWIW: Potter's Cash (and vault size)

[justcarol67]

No: HPFGUIDX 162002

Random wrote:
> Now, remember, this world has _magic_! there's no particular reason
to think all that cash, or a significant fraction of it [regardless of
how much space it fills normally] can't be kept on his person. <snip>

Carol responds:
Specifically, there's Reducio, the antithesis of Engorgio. Fake!Moody
uses it as a counterspell to return an enlarged spider to its normal
size before putting it back in the jar, but I see no reason why it
couldn't be used on its own to reduce the size of an object so that it
will fit in a smaller space, such as your pocket. I'm assuming that
this is the spell placed on Muggles' keys to cause them to shrink, but
a Wizard would make sure that the object remained the desired size
until he was ready to restore it to normal. More convenient than
reducing the weight of a trunk full of galleons or dousing it with
Shrinking Potion. If Slughorn can expand his office to make it large
enough for a party or Mr. Weasley can expand the trunk (boot) of the
Flying Ford Anglia to hold six trunks and two cages, I don't see why
it would be impossible or even difficult to reduce the contents of a
vault to a manageable size.
 
Random wrote:
> Again, magic. (I also like the idea that maybe there are coins,
perhaps in other metals (platinum?) that are multiples of a galleon...
but that's not in evidence of course)

Carol:
What about those gigantic coins, exaggeratedly described by the Muggle
Mr. Roberts in GoF as being the size of car tires, IIRC?

Carol, who visualizes the vaults as being large enough to walk into
and wishes she had mounds of gold coins or even silver and bronze
coins (Interest or no interest, Harry's a lot richer than I am!)