What follows is an opinion from a United States Court of Appeals. Your task is to identify the type of district court decision or judgment appealed from (i.e., the nature of the decision below in the district court).

Opinion:
UNITED STATES of America, Appellee, v. Robert L. DONOVAN and Albert Andrews, Defendants-Appellants, and Hyman Cohen, Defendant.
No. 269, Docket 24821.
United States Court of Appeals Second Circuit.
Argued March 14, 1958.
Decided March 14, 1958.
Jacob W. Friedman, New York City (Frank E. Healey, New York City, on the brief for Robert L. Donovan), for defendants-appellants.
Adelbert C. Matthews, Jr., Asst. U. S. Atty., S.D.N.Y., New York City (Paul W. Williams, U. S. Atty., and Robert Kirtland, Asst. U. S. Atty., New York City, on the brief), for appellee.
Before CLARK, Chief Judge, HINCKS, Circuit Judge, and BRENNAN, District Judge.
PER CURIAM.
Judgment affirmed in open court.

Question: What is the type of district court decision or judgment appealed from (i.e., the nature of the decision below in the district court)?

Choices:
Trial (either jury or bench trial)
Injunction or denial of injunction or stay of injunction
Summary judgment or denial of summary judgment
Guilty plea or denial of motion to withdraw plea
Dismissal (include dismissal of petition for habeas corpus)
Appeals of post judgment orders (e.g., attorneys' fees, costs, damages, JNOV - judgment nothwithstanding the verdict)
Appeal of post settlement orders
Not a final judgment: interlocutory appeal
Not a final judgment: mandamus
Other (e.g., pre-trial orders, rulings on motions, directed verdicts) or could not determine nature of final judgment
Does not fit any of the above categories, but opinion mentions a "trial judge"
Not applicable (e.g., decision below was by a federal administrative agency, tax court)

Answer: 0