I've been looking over records for legal briefs, pleas, etc. and I've found that there are multiple ways in which we and/or other institutions handle the Court, case number, and caption in the title proper/245:
In the Supreme Court of the State of California, John H. Saunders and Clement Boyreau, plaintiffs and appellants, vs. William S. Clark, defendant and respondent : ǂb brief of appellants / ǂc Saunders & Campbell, J.B. Felton, atty's for appellants.
In the Supreme Court of the State of California, John H. Saunders and Clement Boyreau, plaintiffs and appellants, vs. William S. Clark, defendant and respondent, brief of appellants / ǂc Saunders & Campbell, J.B. Felton, atty's for appellants.
In the Supreme Court of the State of California : ǂb John H. Saunders and Clement Boyreau, plaintiffs and appellants, vs. William S. Clark, defendant and respondent : ǂb brief of appellants / ǂc Saunders & Campbell, J.B. Felton, atty's for appellants.
John H. Saunders and Clement Boyreau, plaintiffs and appellants, vs. William S. Clark, defendant and respondent, brief of appellants / ǂc Saunders & Campbell, J.B. Felton, atty's for appellants.*
John H. Saunders and Clement Boyreau, plaintiffs and appellants, vs. William S. Clark, defendant and respondent : ǂb brief of appellants / ǂc Saunders & Campbell, J.B. Felton, atty's for appellants.*
*with a note that reads "In the Supreme Court of the State of California at head of title."
If you were cataloging this according to RDA, which of these would you use?