The defendant, indicted for an alleged violation of Title 18 U.S.C. § 1084 (Interstate transmission of wagering information), has filed herein a motion to suppress evidence based upon the assertion that evidence was seized by reason of a “wire tap” and that there was an illegal watch or cover placed on his mail.

Upon the hearing of the motion it was argued by defendant’s counsel that oral testimony should be elicited in support of the motion. The government contended that a prima facie case had not been made out which would justify a purely exploratory procedure, and that the matter should be disposed of on the record before the court.

In support of its position the government places reliance upon the affidavit of the United States Attorney wherein he has sworn that there was no “tap” of defendant’s wire and that no evidence gathered from such source was presented to the Grand Jury that returned the indictment; nor would any such evidence so obtained be used at the trial. Also, the affidavits of the Postmaster at Las Vegas, Nevada, and several postal employees, disclose that the “mail watch” which was admitted by the government did not go beyond that which was visible on the outside of the letter or package.

Defendant’s motion, representing generalizations and blanket charges, must find support in the affidavit filed by defendant’s counsel, Richard Foster. The affidavit is insufficient and on its face discloses (1) that a letter containing confidential legal advice “presumedly” was interrupted by government agents; (2) that an interview with individuals concerning questions directed by the Internal Revenue Agents demonstrates that the agents “must have been familiar with the content of the correspondence and with the content of the telephone conversations.”

These conclusionary assertions are patently insufficient to create an issue. In view of the categorical denial by the government 1 and the complete ab *271 sence of any evidentiary material to give support to the defendant’s charges, no issue has been presented which requires a further hearing, or the taking of testimony for the determination of the motion. United States v. Casanova, D.C., 213 F.Supp. 654 ; United States v. Weinberg, D.C., 108 F.Supp. 567 ; United States v. Flynn, D.C., 103 F.Supp. 925 , affirmed 2 Cir., 216 F.2d 354 .

The defendant has failed to support the motion by a prima facie showing of alleged illegal conduct by the government and no issuable fact has been raised. United States v. Warrington, D.C., 17 F.R.D. 25 .

The type of “mail watch” conceded by the government in the case at bar has been upheld in the following well-considered authorities: United States v. Costello, 2 Cir., 255 F.2d 876 ; United States v. Schwartz, 3 Cir., 283 F.2d 107 ; United States v. Cohn, Docket No. 63CR748 S.D.N.Y., Opinion filed March 4, 1964; Cf. Ex parte Jackson, 96 U.S. 727 , 24 L.Ed. 877 .

The uncontroverted affidavits of the government mail carrier White and the United States Postmaster Lias demonstrate that no mail was opened but that data appearing on the outside of the envelopes addressed to the defendant Cohen was recorded. 2 The crucial distinction between opening first class mail- and the scope of inspecting and handling of all forms of mail was emphasized in Oliver v. United States, 8 Cir., 239 F.2d 818 , 61 A.L.R.2d 1273 .

To the defendant’s assertion that certain Postal laws 3 were violated and for that reason his motion should be granted, it likewise appears that not a scintilla of evidence has been put forward in support of his assertion. However, affidavits submitted by the Government clearly indicate that there was not a delay or obstruction of the defendant’s mail 4 and at no time did he ever complain that his mail was late or irregularly delivered. In any event, it is clear that the Constitutional guarantees do not extend to prohibit the practice of examining the external markings on first class mail and it has been held that this kind of “mail watch” does not violate the Postal laws. United States v. Costello, supra. United States v. Schwartz, supra, points out that a “mail watch” is authorized by the Postal Regulations 5 and does not amount to unauthorized “tampering.”

The statute held unconstitutional in Heilberg v. Fixa et al., D.C., 236 F.Supp. 405 , cited by defendant, authorized detention of mail containing controversial political ideas, required the addressee to signify a desire to the Postal author *272 ities to receive such mail, and resulted in a listing of the addressee as one who wanted to receive such “propaganda.”

There is manifestly no violation of constitutional mandate nor statutory guaranty that precludes the exterior inspection of a first-class letter or package.

Accordingly, it is ordered that the motion to suppress be, and the same hereby is, denied.

. The affidavit of Frederick J. Woelflen filed as Exhibit “A” under date of February 7, 1964, in part:

. Recorded were the names of Addressee, Sender, Return Address, Postmark and Class.

. Defendant charges the mail watch violates Title 18, §§ 1701, 1702, 1703.

. Affidavit of Harry White, mail carrier, under date of December 9, 1964, states: “Mail watched and all other mail was strapped by me at the same time and all mail to be delivered on my route was taken from the Post Office at the same time” to and including defendant’s address.

. Section 41.4; Section 831.44.