There was the matter of the wedding, which was now to be in quadruplicate.
We must not, however, fall into his own mistake and quadruplicate to his duply.
The order received by mail is written up and invoiced in quadruplicate on a snap-out form.
Army accounting is wholly unlike civilian, books being dispensed with and accounts of all kinds being made in quadruplicate.
Most common is the "quadruplicate" arrangement, with four sets of laminae of differing depths.
I will not repeat what I have said on this subject in my last, a quadruplicate of which is enclosed, as is also a cypher.