after making the foregoing statement, delivered the opinion of the court.
The management of the great post office business of the country is placed in the hands of-the Postmaster General and assistants. Rev-Stat., §§388, 389, 396. In the discharge of his duties as Postmaster General hedías assigned to the First -Assistant Postmaster General “the,preparation of decisions as to delivery of ordinary mail, the ownership of which is in dispute.”. Postal Laws and Regulations, 1902, § 17, par. 9. The question here presented is whether the First Assistant Postmaster General, having directed the postmaster at Chicago to deliver to the “Central Trust Company of Illinois,” defendant herein, mail-matter addressed “Central Trust Company, Chicago, Ill.,” without any further designation'of the party for whom it was intended, the courts are, upon the facts as presented, justified iii setting aside that order and directing the delivery of such mail to the' complainant. It is not always easy to determine for whom a letter is intended. In further-, anee of the effort to secure delivery of mail-matter to the proper party, pars. 3 and 4, § 634, and pars. 4 and 5, § 645, of Postal Laws and Regulations provide:
“Sec. 634, Par. 3. When a postmaster is in doubt as to the identity of the addressee, he. may require proof, and should exercise great care, especially where mail matter appears to be of value, to make proper delivery.
. “ Par. 4. Where two or more persons of the same name receive mail at' the same office the postmaster shquld advise them to adopt some address or means by which their mail may be distinguished. Postmasters will deliver such matter according to their best judgment, and will not return it to the mailing office for better description of the addressee until, after inquiry, they are unable to determine to whom it should be .delivered.” '
*260 “Sec. 645, Par. 4. Attempts to secure the mail of an'established house, firm, or corporation through the adoption of a similar name should not be recognized. Where disputes arise between individuals, firms,: or corporations as to the use of a name.br designation, matter addressed to a street, number, or building should be delivered according to such address. When not so addressed, the mail will be delivered to the firm or corporation which first adopted the name of the address at .that place.
“Par. 5. When in doubt as to the firm or corporation for which any mail matter is. intended, and claim therefor is disputed, postmasters will withhold delivery and report tíre facts and any statements made by either claimant to the First Assistant Postmaster General; for advice.” •
. Appellant contends' that its legal name is “ Central Trust Company ” while the legal name of defendant is “Central Trust Company of Illinois.;” that, therefore, it has a right to have mail directed to “Central Trust Company, Chicago,” without further designatipñ, delivered ta it rather than to defendant. The argument primarily is’ that every corporation is entitled to the legal benefit of its own name; that when that name appears on mail-matter as the party addressed, and nothing else is shown, the postmaster has simply the ministerial duty of-making a delivery.to that corporation, and that a failure to discharge this ministerial duty can be corrected by the courts.
While in a certain sense it is true that the benefit of one’s ' legal .name belongs to every party, individual or corporation, yet that" may nót be £heJ name by which it is customarily known or addressed, and of course the object is and must be to deliver the mail-matter to the party for whom it is intended. In the determination of this it may often be necessary to look beyond the exact legal name. Many things may have to be considered, and the action of an officer charged'with that duty should not lightly be disturbed by the courts, and only when it is clear that-a mistake has been made or a wrong *261 done. Initials are often used, abbreviations made, words left out. The number of letters delivered tó the respective parties • and the disposition made by each of those received may cast some light upon the question, for while a party for whom a single letter is intended has a right to receive it, yet the number of letters, taken in connection with the amount of business apparently done by the recipient, may well suggest for whom any given letter was intended, and the action taken by the recipient, when as here each knows of the existence of the other, may show its good or bad faith in dealing with' the post office. So also the character of the business done may be considered. Where a corporation is engaged in the banking business letters from other banks will point to it as the intended recipient, while if it is a real estate corporation letters from real estate firms will indicate differently. And so we might go on and' mention other things which; while by no means conclusive, tend'to throw light on the matter.
We have had occasion to consider the effect of findings of fact by officers in charge of the several departments of government, and the accepted rule is that those findings are conclusive, unless palpable error appears..
Bates & Guild Co.
v.
Payne,
“The appeal made by the complainant to the department was really nothing but an appeal to its discretion. . . . Assuming that the court in some cases has the power to, in effect, review the determination of the department, we do not think this is an occasion for its exercise. The complainant is really appealing from the discretion of the department to the discretion of the court, and the complainant has no clear *262 legal right to obtain the order sought. See Bates & Guild Co. v. Payne,194 U. S. 106 , 108.
“A court in such case ought not .to interfere in the administration of a great department like that of the Post Office by .an injunction, which directs-the department how to conduct the business thereof, where the party asking for the injunction has no clear right to it.”
We do not deem it necessary to consider other questions discussed by counsel, for, upon the facts presented and for the reasons stated, we are of opinion that there is not enough to show such .clear right in the complainant as justifies the setting' aside-of the order of the First Assistant Postmaster General.
The decree is, therefore, Affirmed.