The 1920 series of crown its quite expensive mintage less than 10,000,proof coins others mint 5,000 to 20,000.is the crowns overvalued or undervalued? The gold should it be BV in fine unless other series is much more expensive. Coin in high grade is very expensive most of things are expensive now, dont know about the higher grade for other expert can follow the market in auction house if they appear,dont know but pricing coin should be from BU to fine across the grades and its mintage but you and other expert can judge on this, Im just comparing other countries when mintage is below a million in high grade is a good find maybe this is not applicable to GB for GB predecimal coins maybe are stock in most of the closet in GB and easily available. Other countries like Canada and Australia and US are also collecting GB coins and maybe other dealers are selling coins in those countries overvalued or undervalued?maybe they are back tracking maybe because slab and high grade coins are very expensive,or maybe GB coin market and its value is second to the US market even in raw coins compared to US in slab both are becoming very expensive. Maybe that is the difference between metal value and collecting value of coins. Is this for GB market or world wide market?like the gold penny. In times of inflation is the coin value is the same?or it will go downwards?