A bill to provide for the issuance of a commemorative postage stamp in commemoration of the 500th anniversary of the birth of Nicolaus Copernicus, the founder of modern astronomy.

Directs the Postmaster General to issue a commemorative postage stamp during the calendar year 1973 in commemoration of the five hundredth anniversary of the birth of Nicolaus Copernicus (Mikolaj Kopernik), the founder of modern astronomy. States that such stamp shall be of denomination and of such design as the Postmaster shall determine.