Re:what type of comb is this?

That's a single comb.

 

single comb. I spy your avatar - do you have Portuguese Water Dogs?

 

x2

 

Single comb

 

Maybe it'll get more points when older...I think I heard the ideal single comb is 5 points but could depend on breed
N

 

[Article] The 9 Comb Types

 

Not all single combs have the same number of points. Ideally, you do want (for most breeds, with just a few exceptions) five points on the single comb. But, no bird is perfect and many have just a couple points or seven or more.