Distinguish between a par-value share and a non-par-value share.

Par-value Share

A stock with a face value as specified in the corporate charter beyond which it cannot be sold upon initial offering.

Non-par-value Share

Shares issued without a nominal or face value, with their selling price determined by the market or by the issuing company.

Distinguish

To recognize or treat as different; to make a clear separation between two or more things.