Since 1966 Kett's Koin Kastle in Oxnard, CA has been serving Ventura County. Our staff is friendly knowledgeable. If you're a collector or an investor of gold, silver, rare coins, stamps, and jewelry, this is the one store you will be sure to visit. Kett's Koin Kastle is Ventura County's oldest coin store. We carry a complete line of supplies for all your collector needs. Kett's Koin Kastle gives free appraisals. We also buy stamps, gold and silver bars, coins. The most complete coin and stamp store in Ventura County. Come see us soon.. Sell,Buy Coins & Stamps/ Complete Line of supplies/ Free Appraisals