Anxious- first time getting chicks shipped

[NatJ]

here’s a better shot of the comb. (So hard to photograph! But at least this little one loves to be picked up)

I think it's a single comb.

There's a small chance of it being a pea comb--some of them look too much like single combs when the chicks are so young.

I'm sure it's not any other kind of comb I know of (rose, walnut, cushion, strawberry, V, buttercup).