Super Shiny Mirror Finished 1943 Steel cents, Copper 1943s and Steel 1944s
Reprocessing or Plating original coins to create rare fakes

The reprocess strips the original 1943 coating and applies a new one, these are not considered worth collecting.
This one was so shiny that It took  over 10 different scans to get this graphic and it is not even close to how bright
 the coins finish is. I found 5 of these in an older roll of steel pennies I bought in the 70's. There is much more on other
sites about how to tell the differences between a normal 1943 and a reprocessed or replated steel coin. Another problem
with 1943 Steel Cents is some people have plated them with copper and tried to pass them off to unknowing collectors as the real
deal. I keep a neoprene coated  magnet handy and only the steel cent will stick to a magnet, I also use the magnet when skimming thru bulk cents, that way washers, staples, rust, razor blades and other undesirable magnetic things get picked up and removed easily.

The  left coin is a Reprocessed 1943 Cent - On the left is a Uncirculated 1943 Cent

The Left Reprocessed Coin was so shiny the scanner light bounced off of it

A very few 1943 copper coins were struck - many steel cents have been copper coated,
they are easily tested with a magnet and will stick to a magnet - real copper coins will not.
A few 1944 steel coins were struck and again many 1944 copper coins were plated to look like the
1943 steel cents, these however are not easily tested. The way to check them are weight and appearance.
The weight would exceed 3.11 grams because the steel cent was 2.77 grams and copper 3.11 grams.
Appearance is another way to check coins for fakes, plating over a coin disfigures fine details.

 

1914 D

The 1914 D has often been faked by using a 1944 D
By removing pieces of the first 4 to make it look like a (1).
however the gap difference can be seen by close observation of the
date 1914 ( 1944 to 19 14 ) and the V.D.B. on the shoulder is usually  removed
from the 1944 so look there for evidence of removal, of course a D could be added
to a 1914 so always try to check the ( D ) against a certified coin or a reliable source.

1922 no D

1922 no D is easy to create and harder to detect if the forger is experienced. Only
the Denver mint produced cents that year, however thru overused Dies and contamination
on the dies by dirt grease, etc. some did not have the D on them or a partial D.  A inspection under a
 microscope or  high powered magnifier, will usually show evidence of the modification if it has been done.
There is much more on Internet pages that will go into greater details about how the 1922 no D came about.

Any coin can be duplicated any many rare & expensive coins have been, There are copies marked copy, there are some that will weigh the same, some I have heard will be exact on the obverse and wrong on the reverse,
in order to sell it as a rare error. Heated to change the color, chemically stripped, etc.
Again much more info is available with a Internet Search.