Robert Schoenburg

3D National Parks

Take a three-dimensional journey through 28 of the United States National Parks. This 3D presentation of the beauty and natural wonder...

June 10, 2016 By Robert Schoenburg

Canada Coin Checker

Did you know that four different varieties of the Canadian five cent piece were minted in 1947 and that one of them is worth more that...

July 23, 2013 By Robert Schoenburg

U.S. Coin Checker

Did you know that six different varieties of the one cent piece were minted in 1909 and that one of them is worth more that $4,000...

July 12, 2013 By Robert Schoenburg

U.S. First 100 Years Postage Stamps

Stamps Volume 1 is a database management program for collectors that contains images, pricing and descriptions for all United States...

June 2, 2013 By Robert Schoenburg

U.S. Postage Stamps--V2 1948-1987

Stamps Volume 2 is a database management program for collectors that contains images, pricing and descriptions for all United States...

May 6, 2013 By Robert Schoenburg

Fine Art - Romantic Period

Enjoy a collection of the works of twelve prominent Romantic artists. Twenty-five of each of their most famous paintings can be viewed...

May 9, 2012 By Robert Schoenburg

Fine Art - Baroque Period

Enjoy a collection of the works of twelve prominent Baroque artists. Twenty-five of each of their most famous paintings can be viewed...

April 16, 2012 By Robert Schoenburg