to record journal entry for the long term investment carried at revaluation value.

Example:- A piece of land in an industrial estate purchased in January
2000 for $1,000,000 dollars.
The journal entry in January 2000,
and the journal entry in December 2009.
The land has been valued at $1,800,000 in December 2009.

1)
DEBIT Land Account $1,000,000
CREDIT Bank Account $1,000,000

A piece of Industrial Land purchased
for eventually building a factory.

2)
DEBIT Land Account $800,000
CREDIT Revaluation Reserve A/c $800,000

Being the revaluation of land in December 2009.as per revaluation certificate obtained from valuer.