Swift completion of storage Littera excambio OrderSupellex FamilyCondo GenusLittera SpeciesLittera excambio Description Littera excambio (cn. USPS Relay Mailbox) are the unsung workhorses of urban mail delivery. L. excambio holds a day’s worth of mail for the mail carrier, since they can only hold so much mail at one time, allowing the mail carrier to come…
