The reverse has all die cracks described by Overton.

For die variety collectors, this year represents the ultimate challenge. A total of 49 marriages are known and these were produced from a combination of 29 obverse dies and 34 reverse dies. Total mintage was 5,493,400 coins, fourth highest of the series. This year is also a delight for the cherrypicker. Among these 49 marriages are one Rarity-7, two Rarity-6, seven Rarity-5, 14 Rarity-4, and 17 Rarity-3 varieties. This leaves only eight die marriages that are considered common. All one has to do is memorize the variety characteristics of each of these 49 die varieties, or memorize the characteristics of the eight common marriages, and attribute any other. I'll start you out with a little help: two of the eight common varieties are 1827/6 overdates and a third has a curled-base 2 in the date. Of the remaining five common varieties, all have the letter I in PLURIBUS right of center below T!

The Logan Collection includes 47 of these 49 known varieties, with only O-103 and O-149 absent. Altogether, 58 coins are presented in the following lots. The envelope marked O-103 contained a mis-attributed example of O-119.

Reverse is cracked as described by Overton.

Leaman/Gunnet Emission Sequence for 1827 Capped Bust half dollars: O-101, 102, (1826 O-114), 118, 119, 103, (1826 O-103), 146, 147, 136, 137, 121, 123, 122, 138, 139, 128, 129, 135, 124, 125, 114, 141, 117, 115, 142, 143, 148, 130, 131, 133, 145, 132, 104, 134, 116, 105, 106, 127, 126, 144, 113, 112, 149, 120, 109, 110, 111, (1828 O-103), 140, (1828 O-104, 106, 107, 105), 108, (1828 O-101), 107.