1 ozt Merck 100th 999 Silver Round

The image shows a 1991 Merck & Co. Pharmaceuticals 1 Troy Oz. .999 Fine Silver Round, issued to commemorate the company's 100th anniversary (1891-1991). 

The coin's design features a large "1" and the company name "MERCK," along with five stars and the text "AMERICA'S MOST ADMIRED COMPANY, A RECORD FIFTH STRAIGHT YEAR".

This silver round is a commemorative medallion, not a legal tender coin. 

It contains one troy ounce of .999 fine silver. 

It's a collectible item for those interested in the history of Merck & Co. Pharmaceuticals or silver bullion. 

Content: 1 troy oz. of fine silver

Weight: 31.103 g

Diameter: 40 mm

Thickness: 2.45 mm

Purity: 99.9%

Year: 1991