• Clone to be filed?
• Contract clone (whose abbreviation hints at this puzzle's theme)
• Double
• Duplicate
• E-mail feature
• Elemental duplicate?
• Exact duplicate
• Exact replica
• Kind of clone
• Look-alike
• Old-time duplicate
• Old-time typescript duplicate
• Replica
• Smudgy representation
дублировать; имитировать; подражать во всём