i was wondering what horn came factory on my 29 coupe?

A Klaxon Model 8-C.

What does a KLAXON 16 apply to???

A pair of C-8s.

Ray! Seriously, there is a pair of KLAXON horns for sale and they are just like the 31 pancake horn, EXCEPT the center says: KLAXON
16
KLAXON

I picked one up the other day that looks like a 31 pancake but has Ames across the front.Did other makes use this type of horn or were they aftermarket?

That horn is an aftermarket item.

Are you replying to Woody or Hoppy?

JunkYardDog! The horn I`m asking about is e-bay item#4621228167

I was replying to "woody".

eBay item number 4621228167 is not for 1932 as stated in the item description.

JunkYardDog! Thank you for your reply. The item description says 31-32-33-34, I know 32-33 have a trumpet horn, what I was wondering, are these horns correct for 31???

Those Klaxon horns must be something special selling for $201.50 and one is not working.

Remember the one liner: "A fool and his money are soon parted!"

The horns are both aftermarket replacements for ??????. Plymouth, Harley Davidson, Caterpillar and others used the same horns but differ in the bracket, cover, terminal locations from the 1931 Chevrolet horn.

is ther klaxon an ahhoooga horn or a loud BEEP!!!! type horn? and where is it supposed to be located?

The Klaxon Model 8-C horn is a motor driven type and it is located on a bracket between the left frame rails right opposite of the generator.

Except for the 1926 and 1927 where it was mounted on top of the engine and bolted to one of the exhaust manifold bolts.

dang, someone got to it before i got the car.