Diamond Dave Delaney
From superman.nu: Supermanica
Diamond Dave Delaney
A Metropolis “gang chief’ and cunning “arch-criminal—nicknamed Diamond Dave because of his sparkling diamond stickpin, who is captured along with his henchmen by Superman in June 1953. Superman’s efforts to apprehend the Delaney gang are severely hampered by the fact that weird “super-cosmic rays,†emanating from a “huge whirlpool of flaming gases†in the “vast loneliness of interstellar space,†have temporarily rendered him invulnerable to Kryptonite and able to pierce lead with his X-ray vision, but only at the cost of making him fatally vulnerable to diamonds and unable to see at all through ordinary glass (Act No. 181: “The New Supermanâ€).