Here is a stunning 1838-C Classic Head Half Eagle.  The 1838-C is a one year type coin for the Charlotte mint and was minted in the first year of this new founded mint. In 1839 the Charlotte mint began production of Liberty Half Eagles.
 
This is the HM-2 die marriage which according to Daryl Haynor in his book 'Classic Gold Coins of 1834-1839', consists of about 63 coins. That is about half the population of the HM-1 so twice as rare. Haynor places an R5 rating on it. The CAC/CACG pops are 19 total for both die marriages, so maybe 6 to 8 have CACed for the HM2(?). This is the only CACed VF30 either die marriage, with 4 in 35 and 8 in XF-AU50. CAC retail guide places no premium for the HM-2 over the HM-1, while the PCGS guide looks like about a 10% premium in 55, the only one it prices.
 
But wait there is more. There is a label on the back that states:
 
HM-2 WITHOUT THE DIE BREAK. THIS IS THE FOURTH COIN KNOWN.
 
Looking at the images in Haynor, apparently all but these 4 have a rim to rim die crack on the reverse from a shattered die. Now we think die breaks are  pretty cool, but this means this example is one of 4 of the rarer perfect die. Haynor lists the other 3 at MS63, AU55, and XF45. So this one at VF30 is indeed the 4th known of the perfect die.
 
This half eagle is everything it should be to be worthy of a CAC sticker - no major detractions, great color, and as original as any gold coin can be.  Most of these have been scrubbed and dubbed, so this example is truly a rare find of a very rare coin.  Wow.
 
This coin is approved by CAC.
 
PCGS Cert. #42202293