What kind of french horn do I have?

Question:I really don't know what kind of horn it because I'm confused if it's a single F horn, Double horn, or single Bb horn. I don't want to get the fingerings wrong. It has a trigger, that's all I could say how it looks.
I have a book called Essential Elements 2000 Bk. 1. So, if anyone knows please let me know and what correct fingerings to use.
Best answer wins.
Thanks!

Best Answer - Chosen by Asker: I really don't know what kind of horn it because I'm confused if it's a single F horn, Double horn, or single Bb horn. I don't want to get the fingerings wrong. It has a trigger, that's all I could say how it looks.
I have a book called Essential Elements 2000 Bk. 1. So, if anyone knows please let me know and what correct fingerings to use.
Best answer wins.
Thanks!

With a trigger, you have a double horn. The trigger will pitch your horn in b-flat. If your method book is meant for a double horn, it will tell you when to use the trigger as you progress.

Secondly, notice the extra tubing you have in comparison to someone with a horn who does NOT have a trigger. The double horn has much more tubing and obviously will weigh more.

The double horn is beneficial for advanced playing because switching back and forth between certain ranges will improve tuning AND the ease to reach higher notes. Typically players will switch to the B-flat side after the g-sharp in staff.

If it is a French horn, it's probably the rude kind. :)

You have a double horn. don't even worry about the horn in Bb, they are not very common, if you have a single horn it would be a horn in f. A double horn is the combined f and Bb horns. when you press down the trigger, you are using the Bb horn, if not the F. This provides increased range and convenience for the player. Most players use the Double or Triple Horns (another uncommon variation). Single Horns are for lower level players and are uncommonly used after the 5th or 6th grade.