Definition: DMPL stands for Deep Mirror Proof-Like, and is a term usually reserved for describing certain Morgan Dollars that were struck for circulation but have unusually clean mirror fields and often frosty devices, similar to a genuine Proof coin. The DMPL Morgan is contrasted with the Prooflike (PL) Morgan which also has mirror fields, but to a lesser extent. The way to determine whether or not your Morgan Dollar is PL or a DMPL is to measure the amount of reflectivity on the mirror surface. Most grading services use both the PL and DMPL designations on their slab inserts. Sometimes you'll see the term Semi-prooflike (SPL) used to describe Morgan Dollars that don't quite qualify as full "Prooflike."
See also:
See also:
Pronunciation: DMPL is sometimes pronounced "Dimple."
Alternate Spellings: Deep Mirror Proof-Like
Examples: DMPL Morgan Dollars are most common early in the series, and were the first coins struck from new dies.
