Which siren to record?

[anddavivr]

South Dakota will be doing its statewide torando drill next week. I have the opporotunity to record one of the following sirens in Spearfish. Question is which one to record as I have only one chance a year.
What do you think?

Siren #1
Unknown make/model
http://www.flickr.com/photos/7988636@N04/1132508097/

Sirem #2
Model 5
http://www.flickr.com/photos/7988636@N04/472755012/

Siren #3
Model 5
http://www.flickr.com/photos/7988636@N04/472730308/

There are two other sirens in town (Model 5 and 2001) but I already have videos of them.

[Robert Gift]

Siren #1.

Model 5 has been recorded many times.

#1 may be dual toned.

[Thunderbolt 612]

I highly suggest doing the unknown dual-headed siren.

[md5]

Go for siren #1 as you listed.

[Thunderbolt 612]

Thank you.

[JasonC]

Definitely #1!! Thats an original Federal Fire Siren (no, its not called the Lion) and probably dates to the 30's.

[kswx29]

Assuming that Siren #1 is still active, record it!

[coyoteunknown]

Another vote for #1.

[SirenMadness]

Number-one here, too!

[Matt]

Number one looks like a H.O.E. Sirex