1. Eugene H. Gardner Collection items realize $13.78 million at recent New York auction

Heritage's May 12 auction was held at the Waldorf Astoria in Manhattan. 

"The demand for Gene Gardner's astounding collection continues to skyrocket, as do the prices realized," Heritage Auctions President Greg Rohan said. "With this event, the collection has now realized more than $47 million. That's an astounding figure even by Heritage's own very high expectations for this magnificent collection." 

Read more about the sale here.

2. David and Goliath clash on silver coin 

Scottsdale Mint released its third coin in a Biblical series, this one featuring David and Goliath. 

Check out the new 2 oz. coin here

3. Israel sparks interest with solar-inspired coins 

A leading nation in the development of sustainable solar power, Israel has released coins focusing on solar energy with a design that depicts the sun with gleaming rays along with a widespread, basic solar panel. 

4. Precious metals pricing

Kitco.com listed the following prices per ounce as of 10:00 a.m. ET Tuesday:

• Gold: $1,214.80
• Silver: $17.380

5. Yesterday's most-viewed post 

If America has a woman on paper money, why not plastic money?: Monday Morning Brief, May 18, 2015

6. Some social interaction