Baby Teeth  Suggested by Heron2001 
Bebit  Suggested by donshottype 
Surfside  Suggested by Heron2001 

This is the closest I can find...

And gosh ... how many names has this been given ...

Fits if _O_ edited to make matching counter
Baby Teeth was designed by Milton Glaser in 1968
Image of the original font

More info http://e-daylight.jp/design/fonts/type/b/baby-teeth.html
http://fontsinuse.com/typefaces/7322/baby-teeth
I did not find a legitimate digital version.
Don

Alexey Kustov's Bebit is similar to Baby Teeth of Photo Lettering designed by Milton Glaser.
Don

Curious - where were all of you when it was originally posted in June?

Also - if you want to add names - well, OPTIFont did their own version for typositor which they digitized and they called it Buford... LOL

Typography is dead - long live I haven't a clue anymore...

and if you want to get like this - then of course we have

Yes dear Kat - there seems to be many!

I don't follow each and every post, as you know Jackie. And certainly not these fuzzy images which once IDed are being frogged.
Whatever, many have made their digital version of this thing or just copied and renamed it so your suggestion is as good as any other one as no-one has the 'O'.

Edited
Not certain if you included me in your comment.
On the off chance that you did, an observation:
I know I can't beat the super stars of font matching in this forum -- we know who they are -- so I just flip through the posts to see if anything looks unusual and interesting. I like the ones that seem to have some roots before the present digital era and attempt to track down the original designer

Surfside has the _O_ but _R_ is off

Don