In coin grading, DMPL stands for Deep Mirror Proof-Like.
Here’s what that means:
- Reflective Fields: DMPL coins have highly reflective, mirror-like fields (the flat areas of the coin) that resemble those found on Proof coins.
- Frosted Devices: The raised elements of the coin’s design, known as devices (e.g., Liberty’s portrait on a Morgan Dollar), often display a frosted or “cameo” appearance. This contrast between the mirrored fields and frosted devices enhances the coin’s visual appeal.
- Circulation Strikes: Importantly, DMPL coins are not Proof coins. Proof coins are struck specifically for collectors with polished planchets and multiple strikes, [according to Great Southern Coins] . DMPL coins are regular business strikes intended for circulation, but they were struck early in the die’s life, when the dies were fresh and highly polished.
How DMPL is different from PL:
- PL (Proof-Like): A PL designation signifies that a coin has reflective fields, but the mirror effect is less pronounced than on a DMPL coin.
- Reflectivity Test: One common way to distinguish between PL and DMPL is by using a reflectivity test. [The Spruce Crafts suggests] placing a ruler next to the coin under a lamp.
– PL: If you can clearly see 2-4 inches of reflection in the coin’s field.
– DMPL: If you can see 6-8 inches of reflection, along with deeply frosted devices, it would qualify as DMPL.
In short, DMPL coins are highly sought-after circulation strike coins that exhibit a deep, mirror-like finish and frosted devices, making them resemble Proof coins. They are considered more desirable than PL coins and can command higher prices due to their striking visual appeal.
What do the letters mean in coin grading?
This changed to the letter grading system beginning with the lowest grade – Basal State (also Poor (PO)), then continuing Fair (Fr), About or Almost Good (AG), Good (G), Very Good (VG), Fine (F), Very Fine (VF), Extremely Fine (EF), Almost or About Uncirculated (AU), Uncirculated (Unc) and up to Brilliant Uncirculated …