I have looked on all kinds of coin websites and can’t find any information about a gold walking liberty with no date. It is in very good condition.
Proof Gold Eagle Coins Ending Soon on eBay:

My uncle wants to sell this Canadian $100 22 karat gold proof coin. But I don’t know the market price. Please advice.
Proof Gold Eagle Coins Ending Soon on eBay:

How to put a price on gold in the ground…
AT ANY TIME, one ounce of refined gold can be valued at the international Spot Gold, write Louis James and Andrey Dashkov of Casey’s International Speculator.

Gold is priced in US Dollars: $1,076.50 per ounce as we go to press. But what about the gold an exploration [...]