George IV Coins.

There are three things that mitigate against this otherwise logical assumption.

For most of George III's reign, Britain was at war - first against the Americans, then France and her allies. Unlike previous wars Britain had engaged in during the 1700s, neither of these wars were particularly profitable for the British government. There are large stretches of time during this reign when Britain issued no coinage at all. But for George IV, Britain and the British Empire was prosperous and at peace; coins were struck in most denominations in most years.

Secondly, once the Napoleonic wars finally ceased in 1816, very late in the reign of George III, Britain underwent a major recoinage. All the old coins the government could get their hands on were recalled and melted down to make new coins. So even if the original mintage of George III coins was higher (and I don't think actual mintage numbers are known in most cases), there are fewer survivors.

Finally, there's demand, which directly affects value. It's not just British coin collectors that want George III coins. Pre-1776 George III British coins are in demand in America, as part of their own colonial series - in the story of their independence, Mad King George is one of their favourite villains. There's also demand for pre-1800 George III coins here in Australia as part of our "proclamation" series. George IV coins have no similar demand.

Actually, I am rather attracted to British coins generally in the 30 year period from 1825 until 1855, and for copper / bronze and silver coins from 1855 until 1910.

All of the coinage of George 1V is included in the first of these two periods.
The coins of both of these periods have great relevence to Australian numismatic history, but are mostly ignored by Australians, because only British coins circulated in Australia for all practical purposes, from 1825.

In 1825, a large shipment of new British coin was received in Sydney from London, and it is from this time that British coin supplanted the hodge podge of currencies from other countries that had previously circulated.

It is the coins of this first period, and in particular, those of George 1V, William 1V and early Victorian, that interest me. However, Sap is right. I am one of only a few that have an interest in the coins of George 1V from an Australian perspective.

The Australian Colonies were only some of the destinations to which new British coins were shipped in the first half of the 19th century.