These letters you've displayed are completely visible.
And they don't have Obama's seal:
"They show THE WHOLE FREAKIN' LETTER!"
First, I linked to six whole White House letters in my post. So yes, I am well aware of what real letters look like, and I was not trying to jerk around anyone. I naturally assumed readers who were interested in seeing the letters would click on the links.
Second, I'm slightly unclear as to what your point is in embedding images of these White House letters in your post. In case you didn't notice, each of them contradicts assertions you made about what a White House letter "should" look like. They all lack signature lines, several of them lack addresses, and Bill Clinton's is not done in block style.
All you've done is provide more evidence that your supposed standards for what a White House letter "should" look like are grossly inaccurate or overreaching. "Real" White House letters clearly come in a variety of forms, and this letter to the hospital has no features that cannot be found in other White House letters.
In fact, one of the only truly universal features about White House letters is that they DON'T have the kind of signature lines that you claimed Obama's was inappropriately missing.
Bump Dat!!!...