1993P-1DEO-001 Trail Die Obverse

Description

Trail die obverses are significantly rarer than their reverse counterparts, and 1993P-1DEO-001 is the only documented trail die obverse for the entire 1993 Philadelphia date. Trail dies result from lateral movement of the die across the planchet surface during striking — when a die shifts horizontally while under pressure, design elements drag across the coin, leaving faint, parallel lines that trail away from their source in the direction of movement. The obverse (hammer) die is the upper die in most cent press configurations, and its position subjects it to different mechanical forces than the stationary lower (anvil) die, which helps explain why trail effects appear on the reverse far more frequently. Documented at die Stage B in mid-die state (MDS), this variety is the companion die to 1993P-1DER-037T — the same die pair exhibits trail effects on both obverse and reverse, a rare occurrence confirming the lateral movement affected the entire press stroke. Trail effects on both dies of a single pair provides mechanical evidence that the press itself was experiencing alignment issues, rather than the movement being caused by a defect in one die. This obverse entry is the sole representative for the obverse side among a census of at least 44 documented 1993 trail die varieties.

Die Markers

• Stage “B”, obverse is MDS –

Attribution History

• Discovered by Bob Piazza
• Expert attribution by Trail Dies

External References