Ad from Wanted Comics #24 (April 1950).
IT LOOKS EXPENSIVE
In case y’all are wondering, Wikipedia says Eternium is “a metal (the strongest metal) from the planet Eternia in the T.V. Series He-Man and the Masters of the Universe.” Laughing and curious, I used the all-mighty google to find this. Here’s a pic sans “jewels.” IT LOOKS EXPENSIVE.
Given the internet’s amusement over this, an intact one might actually be worth something to comics aficionados.