There are many crested types of canaries. The original crested canary was bred before the crested norwhich, glousters, of staffords... their is a type canary simply called crested .
The crested can also be colorbred, explaining the vast array of colors the breeder had. .and some even song trained and can make good singers.
There are many kinds of canaries, they fall into 3 groups
1 type canaries
2 song canaries
3 colobred canaries
Many times a kind of canary can exhibit some of all groups.... for example the stafford is a type canary...but also is a colobred canary because they are always red. Glousters are only a type canary..they are not bred for color, nor song.
The american singer, timbrados and others are bred for their magnificant song....
The american singer can also be bed for color...the red factors...and they can also be crested..
I vote that yours is a classic american crested

here is a link to the beginning of understanding cresteds.. just because a bird has a crest does not make it a glouster or stafford.. you have to look at the body build, the feather quality, the song ability and more...
http://www.canaryadvisor.com/crested-canary.html