Specification Brand : PFS BulletPoint : Rare, only 5,000 minted. Edge engraved with number. You get 1 oz .999 silver proof 50th anniversaryTHE CREW (Neil Armstrong, Buzz Aldrin and Michael Collins) round in airtite. Metal Type:SilverFineness:.999 Weight:1oz.Precious Metal Content per Unit:1 oz Shape:RoundComposition:Silver Material:SilverYear:2019 Strike Type:ProofTotal Precious Metal Content:1 oz Country/Region of Manufacture:United States BulletPoint1 : One Disc, Disc measures 31mm x 1.6mm BulletPoint2 : Precision machined from high purity metal, ground surfaces, and laser etched labels BulletPoint3 : Approximate weight 20.3g BulletPoint4 : 99.95% pure BulletPoint5 : 5. Application: Widely used in aerospace structural materials, industrial processes, automotive, agri-food,marine industrial machinery etc. Color : Grey ExternallyAssignedProductIdentifier1 : 0791115438931 ExternallyAssignedProductIdentifier2 : 791115438931 ItemForm : Sheet ItemName : Tantalum (Ta) 31mm Metal Disc for Collection or Experiments ItemPackageDimensions_Height : 8.1026 centimeters ItemPackageDimensions_Length : 3.9878 centimeters ItemPackageDimensions_Width : 4.191 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : specialty-non-ferrous-metals-raw-materials Manufacturer : Prince Frederick Store Material : Metal ModelNumber : PFS-Ta31-DISC99.95 NumberOfItems : 1 PartNumber : PFS-Ta31-DISC99.95 ProductDescription : Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium, it is named after Tantalus, a villain from Greek mythology. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as minor components in alloys. -Wikipedia Quarter not included ProductSiteLaunchDate : 2020-07-12T00:26:20.545Z Size : W*L=100*1000mm Style : Thickness 0.1mm SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41000000