The $10 Whale is truly MASSIVE, and the $5 and $8 are each about 4 times the size of a large Commemorative.
And as all are used on parcels or overseas mail they each are prone to damage due to that huge size and pale colours so they scuff and spoil easily too.
I earlier today listed up covers with these I got recently, and many prefer them postally used in period.
Luckily these are all in perfect condition - if buying singles etc on ebay many will "forget" to mention bends or creases etc. http://www.stampboards.com/viewtopic.php?f=27&t=37301