§ 92. Erroneous bills of lading or receipts, issued in good faith,
excepted. No person can be convicted of an offense under the last two
sections, for the reason that the contents of any barrel, box, case,
cask or other vessel or package mentioned in the bill of lading, receipt
or other voucher did not correspond with the description given in such
instrument of merchandise received, if such description corresponds
substantially with the marks, labels or brands upon the outside of such
vessel or package, unless it appears that the defendant knew that such
marks, labels or brands were untrue.