I have no clue how to tell 1 comb from another yet...lol
As for Pudding...Definitely not a Silver...I have another older Silver & it's feathers were never "golden" like Pudding's are. Other than the amount of yellow on the chests, Pudding & Smore's wings are feathering in identically. SeaSea, my Silver, was much lighter colored on it's head as a chick.
Must be the pic that's making Pudding look silver.
As to combs... Single comb will have a single serrated line, pea comb will have 3 rows of bumps, rose comb would be a triangular fleshy spot (like the Sebrights). Those are the most common combs anyways... :-D