What follows is an opinion from a United States Court of Appeals. Your task is to identify whether the opinion writter is identified in the opinion or whether the opinion was per curiam.

Opinion:
In re STANDARD OIL COMPANY OF INDIANA, a Corporation.
No. 13505.
Circuit Court of Appeals, Eighth Circuit.
March 18, 1947.
Buell F. Jones and C. Henry Austin, both of Chicago, Ill., R. R. Brewster, Jr., of Kansas City, Mo., and Fred L. Williams, Robert A. Schlafly, and Roland F. O’Bryen, all of St. Louis, Mo., for petitioner Standard Oil Co. of Indiana.
PER CURIAM.
Motion of the Standard Oil Company of Indiana, a corporation, for leave to file petition for writ of mandamus and/or, in the alternative, writ of prohibition, etc., denied for want of jurisdiction to entertain the petition.

Question: Is the opinion writer identified in the opinion, or was the opinion per curiam?

Choices:
Signed, with reasons
Per curiam, with reasons
Not ascertained

Answer: 1