Entry Submission Physical entries must be placed inside an appropriately-sized envelope. The NAC recommends transparent, plastic envelopes found in most office supply stores and catalogs. Manila-type envelopes may also be used. If a transparent, plastic envelope is used, insert the two copies of the entry form securely inside the envelope behind the physical entry. The entry should be facing or readable from one side and the entry form facing or readable from the other. Firmly affix the entry number to the BACK of every piece in the entry. If a manila-type envelope is used, the entry number label should be attached to the.