This is the draft registration card for Jacob Weiss (Julia (Weiss) Schwartz's younger brother), age 59.
Here's a copy of the (modern) transcription copied from ancestry.ca
U.S., World War II Draft Registration Cards, 1942
Name: Jacob Weiss
Age: 59
Race: White
Birth Date: 13 Jan 1883
Birth Place: New York City, New York, USA
Residence Year: 1942
Residence: Bx, New York
Date of birth: Jan. 13, 1883 (this matches his birth certificate).
"person who will always know your address" = James F. Gavin, 212 W. 15 St., Man.
employer = none
Like Jacob Weiss's World War I draft registration, this notes that Jacob is missing three fingers (specifically, his right thumb, index finger, and middle finger).