|A retained die cud error is an interesting error where the coin is struck with broken die that has not yet fully separated and broken apart. Unlike a rim to rim die crack, when you have a retained die cud error, the rim to rim crack is present, but there is also a shift in the design of the retained portion of the design within the crack. On the 1927 $2.5 Indian Gold Quarter Eagle, some examples show a retained die cud at the lower reverse from the fraction bar to the A of DOLLAR. On this error, you can see a slight shift of the design within the break which is characteristic of a retained die cud. To best see this movement, look at the fraction bar of 2 1/2 and you can see a clear shift in the fraction bar from one side of the break to the other.
This example of the 1927 $2.5 Indian Gold Quarter Eagle has been graded MS61 by NGC and is encapsulated in the newer-style edge-view holder. Please note that the NGC label does note reference the mint error, though the error is clearly present on this example. The coin has an even gold color with no significant spotting, but there are some light marks and scratches scattered about. The luster of the coin is also slightly weak, further accounting for the relatively low mint state grade that was assigned. Still, a nice mint state example of this popular $2.5 Indian gold error coin.