This following shows both of the early seated liberty obverse die trials by Christian Gobrecht. The first is the new discovery piece JA1836-2/P3021 and the second is JA1836-3/P3022 both of which are in the Library Company of Philadelphia as inventory numbers 22 and 20 respectively.
Both are believed to represent one of the earliest of these designs and is similar to the sketches shown in the article "From the Drawingboard of a Coin Engraver" by Elvira Clain-Stefanelli on pages 86 and 87 of the ANA Centennial Anthology.
Differences include the following:
1) The index finger on Liberty's left hand points upward on JA1836-2/P3021 whereas it wraps around the pole on JA1836-3/P3022.
2) There is no drapery on Liberty's left upper arm below the shoulder on JA1836-2/P3021.
3) The drapery folds across the legs are heavier on JA1836-2/P3021.
4) The ribbon inscribed Liberty is also folded differently across the rock.
5) Liberty's foot is shorter on JA1836-2/P3021.
Photos courtesy of the Library Company of Philadelphia.