Ed.2d 136 (1962) distinguished Parr and Kann in upholding an indictment which alleged potential use of the mails as part of a scheme to defraud, a decision which Mr. Justice Douglas in his lone dissent felt “materially qualifies”. Parr v. United States, 363 U.S. 370, 80 S.Ct. 1171, 4 L.Ed.2d 1277.
In Kloian the court pointed to the distinguishing features, saying: “There [Parr and Kann] the fraud operated through the abuse of offices held by defendants. It sounded in larceny after trust,” 349 F.2d at 294. Far more pertinent to the facts here is the court’s comment in Adams that “Appellant’s scheme reasonably contemplated the utilization of a commercial practice which, taken in its entirety, embraced the use of the mails,” 312 F.2d at 140.
Each defendant would isolate himself from a general conspiracy by claiming only partial participation. It is true that each defendant may not have been present on every occasion and each may have had a somewhat different role but the thread of continuity was as visible as Ariadne’s thread which led Theseus safely through the Cretan labyrinth after his Minotaur adventure. The thread here is less serpentine — Confessore-Kellerman; Kellerman-Pucci; Pucci-Travers ; Travers-Rivezzo, and then to Vergo’s house to try to operate the machine and there to store a box of cards, Vergo assisting. The evidence was clearly adequate to justify the jury’s verdict.
The point made that the machine failed to operate and that, therefore, the conspiracy was frustrated and aborted is not legally sound. A conspiracy does not require successful completion of the objects thereof.
II.
The substantive counts present a more serious problem. Was Pucci’s surreptitious filching of a card to replace the card Confessore had given him and a card for his girl friend a plausible part of the conspiracy ? The conspiracy did contemplate use of the cards and there was ae-tual use by Pucci and desired use by Travers.
Rivezzo, in particular, claims that under Pinkerton v. United States, 328 U.S. 640, 66 S.Ct. 1180, 90 L.Ed. 1489 (1946), Pucci’s use of his card “did not fall within the scope of the unlawful project,” id. at 647, 66 S.Ct. at 1184, and that at best it was a separate Pucci-Travers conspiracy. This argument is based upon the assumption that the proof clearly showed two separate conspiracies instead of one and that proof of the alleged Pucci-Travers conspiracy and Pucci’s use of the card was prejudicial to him on the conspiracy count. However, the indictment charged only a single conspiracy. It was for the jury to determine whether Pucci’s and Travers’ activities came within the purposes of that conspiracy and in pursuance thereof. . If, as the jury must have found, Rivezzo was a member of the conspiracy, he was properly convicted under the Pinkerton doctrine on the substantive counts as well.
III.
Reversible error is asserted because of the receipt in evidence of 110 and 114 embossed Diners’ Club cards (Government’s Exhibits 1 and 2, respectively). Defendants argue that there was no explanation of the part, if any, which these cards played in the conspiracy. Of a somewhat similar character are Exhibits 7 and 31. Exhibit 7 was a schedule of duplicate embossed Diners’ Club cards uncovered by Diners’ Club investigators during the period February 1967 through March 1968 together with certain information relating to the cards. This schedule had 636 entries, 224 of which were the cards listed in Exhibits 1 and 2. Exhibit 31 contained 415 entries and was designed to show the total amount of fraudulent charges incurred by the use of duplicate cards over a period from February 1967 to June 1968, a total of $719,887.23. Both Exhibits (7 and 31) were stricken by the Court prior to submission of the case to the jury.
During the trial of every case, the proof has to be introduced step by