I see there are a few different head "types" for 1839. What is this one? Can you even distinguish because of the condition? Thanks!
This is a matron head, but I assume that you are looking for the Newcomb variety number. If so, I'll need to check my references when I get home.
Think Evan8 has it pegged, Here's the variants that year. Really helped me learn the 1839 coronet types.