Looking for Signs

Somewhere north of Hua Hin there is sign for Bo Fai International Airport.  It is somewhere between the airport and the turnoff to Rama II, south of Ratchburi. It's on the east side of the road so you'll notice it when you're heading south.  I've noticed the sign several times and always gotten a laugh when I see it.  I want to use a picture of the sign on the blog. 

I drove up to the Regent this morning and looked for it on the way back but I must have been too far south.  I'll probably go as far as Petchburi in the next couple of days to see if I can find it and I'm hoping I don't have to go as far as Ratchburi.  If anyone has noticed it and remembers roughly where it might be, any tip would save me some gas money.

Gracias