Winchell May Have Always Been Right... But Am I?

A rather crudely drawn postcard, featuring a woman behind a dressing screen in a doctor's office. She appears to be nude, except for her shoes; her stockings and bra draped over the screen. The male doctor appraises her.

"ARE YOU SURE DOCTOR?
WINCHELL'S ALWAYS
BEEN RIGHT BEFORE"

I gather the Winchell referenced is Walter Winchell, making this a humorous stab of gossip about the doctor's reputation, or the woman's, as well as Winchell's.

Then again, my guess that it's Walter Winchell is based, in part, upon the fact that the postcard's incomplete sentence relies heavily on the reader knowing about Winchell & the period's current events and persons -- something Winchell himself was known for.

Not knowing the context, the postcard becomes cryptic & convoluted. The humor is hinted at, but like a child hearing a double entendre, I just don't have enough knowledge to share the laugh.

I appreciate any information from readers.

Other postcard info: Signed ERICK (or E RICK). Divided back, unused; published/printed by Glacier Stationery Co., Great Falls, Mont. No year, circa 1940's - 1950's.