BUENOS AIRES - In a hidden room in a house near Argentina's capital, police believe they have found the biggest collection of Nazi artifacts in the country's history, including a bust relief of Adolf Hitler, magnifying glasses inside elegant boxes with swastikas and even a macabre medical device used to measure head size.

Some 75 objects were found in a collector's home in Beccar, a suburb north of Buenos Aires, and authorities say they suspect they are originals that belonged to high-ranking Nazis in Germany during World War II.

"Our first investigations indicate that these are original pieces," Argentine Security Minister Patricia Bullrich said on Monday, adding that many pieces were accompanied by old photographs.