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:
Thomas A. DaBOUL, Petitioner and Appellant, v. COMMISSIONER OF INTERNAL REVENUE, Appellee.
No. 24705.
United States Court of Appeals, Ninth Circuit.
July 6, 1970.
Thomas A. DaBoul, in pro per.
Johnnie M. Walters, Asst. Atty. Gen., Tax Division, Dept, of Justice, K. Martin Worthy, Chief Counsel, I. R. S., Lee A. Jackson, Elmer J. Kelsey, Richard Farber, Dept, of Justice, Washington, D. C., for appellee.
Before CHAMBERS and MERRILL, Circuit Judges, and BYRNE, District Judge.
PER CURIAM:
The appeal is dismissed as legally frivolous.
The issuance of a statutory notice of deficiency by the commissioner (which was never issued in this case) is necessary before the tax court has jurisdiction. See Corbett v. Frank, 9 Cir., 293 F.2d 501.
If DaBoul was entitled to any relief, he should have proceeded in some United States district 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: 11