"1800”-S altered from 1860-S
“1815”-O altered from 1845-O.
“1819”-O altered from 1849-O
“1851” altered from 1854
“1851”-O altered from 1854-O
“1852”-O altered from ???
“1853” (no arrows) altered from 1858
“1853”-O (no arrows) altered from 1858-O
“1855” altered from ???
“1878”-S (key date) altered from 1858-S
“1879” altered from 1878
 
Or contact me with an alternative offer if this grroup interests you.