
38 U.S. 176 (1839)
13 Pet. 176
THE UNITED STATES
vs.
JAMES E. HARDYMAN.
Supreme Court of United States.

*177 The case was submitted to the Court by Mr. Grundy, Attorney General of the United States.
*178 Mr. Justice M`LEAN delivered the opinion of the Court: 
This case comes before this Court on a certificate of division of opinion of the judges of the Circuit Court, for the eastern district of Virginia.
The defendant was indicted under the 45th section of the postoffice law, for buying, receiving, and concealing certain promissory notes called treasury notes, which he knew had been stolen from the mail of the United States. And, among others, one of the notes was described in the indictment, "as a promissory note called a treasury note, for the payment of fifty dollars, with interest at the rate of one per centum," &c.
On the production of the note in evidence, it was found to be accurately described in the indictment in all parts which were attempted to be described, except on the face of the note; instead of the above words of "with interest at the rate of one per centum," &c., the words were, "with interest at the rate of one M per centum."
And the counsel for the defendant moved the Court to exclude the note from the jury, for the variance; and to sustain this motion, the defendant proved, by the collector of the customs at Richmond, that he received notes, such as the one described, as notes bearing interest after the rate of one mill per centum, and not one per centum; and that the government so received them from him. And the judges being divided on this motion, as also on a motion to quash the indictment, on the ground that the notes set forth in the indictment were not promissory notes, within the act of Congress, the following points were certified for the decision of this Court.
1. Are the treasury notes issued by authority of the act of Congress passed on the 12th day of October, in the year 1838, promissory notes within the meaning of the act of Congress, approved on the 3d day of March, 1825, under which the prisoner is indicted; and is there a sufficient averment in the indictment in this cause, of the stealing and receiving such treasury notes.
2. Is the letter "M," which appears upon the face of the note offered as evidence, a material part of the description of the said note?
3. Would it be proper to receive parol evidence for the purpose of explaining the meaning of the said letter "M," and proving the practice and usage of the treasury department and officers of the government and others, lawful receivers of similar treasury notes, in order to show thereby the meaning intended to be attached, and actually attached, to the said letter M by the treasury department and others; and that by such meaning the said treasury note bears one mill per centum interest, and not one per centum interest.
As to the first point, we entertain no doubt that the notes described in the indictment, are promissory notes within the act of Congress under which the indictment is framed. They contain a promise to pay money by the United States, and they are substantially and technically embraced by the law. And we think the averment, though not very technically expressed in the indictment, *179 that the defendant received the notes, knowing them to have been stolen from the mail, is sufficient.
We think also, that the letter M, which appears on the face of the note, is a material part of it. It limits the interest on the note to one mill per centum, instead of one per centum, as stated in the indictment.
The indictment does not profess to set out an exact recital of the note, but merely to give such a description of it, as to make it evidence in the case. And this is all that the law requires. But the description, as far as it goes, must be accurate, so as to identify the note. Any substantial variance between the note described, and the one offered in evidence, must be fatal to the prosecution. In this respect the rules of pleading are the same in criminal as in civil proceedings.
If the note in question had been given by an individual, and an action of assumpsit had been brought on it, the declaration must have described it accurately; and by a proper averment shown the meaning and effect of the letter M, on the face of the note. And so where a note is given payable in foreign coin, the value of such coin, in current money, must be averred; and under such averment, evidence of the value may be received.
This treasury note might, perhaps, have been described in the indictment with sufficient certainty, without stating the rate of interest which it bears; but if this part of the note be described, it must be done accurately. And this might have been done by copying the words of the note, including the letter M. It would not have been improper, though not essential, after the recital, to aver the meaning and effect of the letter M; and then proof would be required to sustain the averment.
We think, under the circumstances of the case, that parol proof may be received to show the meaning and effect of the letter M, as inserted in the body of the note; and if such evidence shall establish a substantial variance between the note described in the indictment and the one offered in evidence, it must be fatal to the prosecution, whether such evidence be submitted to the decision of the Court or to the jury, under the instruction of the Court.
This cause came on to be heard on the transcript of the record from the Circuit Court of the United States for the eastern district of Virginia, and on the points and questions on which the judges of the said Circuit Court were opposed in opinion, and which were certified to this Court for its opinion, agreeably to the act of Congress in such case made and provided, and was argued by counsel. On consideration whereof, it is the opinion of this Court, 1st. That the treasury notes issued by authority of the act of Congress, passed on the twelfth day of October, in the year 1838, are promissory notes, within the meaning of the act of Congress approved the third day of March, 1825, under which the prisoner is indicted; and that there is a sufficient averment in the indictment in this *180 cause of the stealing and receiving such treasury notes. 2d. That the letter "M," which appears upon the face of the note offered as evidence, is a material part of the description of said note. And, 3d. That it would be proper to receive parol evidence for the purpose of explaining the meaning of the said letter M, and proving the practice and usage of the treasury department and officers of the government and others, lawful receivers of similar treasury notes; in order to show thereby the meaning intended to be attached and actually attached to the said letter M by the treasury department and others, and that by such meaning the said treasury note bears one mill per centum interest, and not one per centum interest.
