Rating A 1937 Airmail Special Delivery Cover

Need little help rating this one out. 1937 airmail special delivery, Sandusky OH to Hungary. Airmail should have been 8 cents (assuming domestic airmail service and surface carriage thereafter). Sender appears to have made a mistake, affixing domestic airmail (6 cents) and UPU surface rate (5 cents). But special delivery was 20 cents, not 10 cents. So it looks to me that full postage should have been 28 cents - the cover is 7 cents short. But only 30 centimes in postage due instead of 35.

Compounding the problem, there is a "not in special delivery" marking from NY, so it's not clear if special delivery service was actually provided (or, for that matter, why, since it's going overseas, it would have been segregated as special delivery mail at or before reaching NY).

As one final question mark, I understand the Hungarian auxiliary marking to refer to items received by airmail, but the cover wasn't endorsed for it. It does, however, have a French backstamp, so perhaps it received this service.

I can't quite make it add up, with or without the special delivery service or the in-continent airmail service. Anyone have an idea?

Victor von Baden would not have been above using too little postage.

"Von Baden Gets Federal Term TOLEDO, O., Jan. 28 [1941] (UPI) Victor Von Baden, president of the Mon Ami Champagne Co., Port Clinton, O., today was sentenced to imprisonment by Judge Frank L. Kloeb of federal district court on charges of conspiracy and violation of the federal alcohol laws pertaining to wineries. On the conspiracy charge, Von Baden was sentenced to two years. On the other charge he was sentenced to two years and two and a half months. Last October Von Baden was sentenced to two and a half years and fined $1,600 on the charge of violating the alcohol tax laws."

See why you should never send a letter, 80 years from now someone might get the envelope and do a criminal background check on you.

KGB: Yes indeed. I'm in the process of writing this cover up (for the Ohio Postal History Journal, and perhaps one or more of the revenue organizations), and I grabbed a whole file of newspaper articles on the 1940-41 court case. [side note: the revenue folks I've consulted with have never seen a Mon Ami cancel on a wine revenue].

The Mon Ami facility in Catawba Island (which was originally built in the early 1870s by a different company) is now a restaurant and it still sells wines under its own label. I had a bottle Saturday night. [Like most Ohio wines, it's a Catawba, light and sweet, which is not my typical taste in wine].

paper, very neat! Good luck with the write up.

By the way, is the large T and N.Y. (?) related to the postage due?

I see Ken L. never got back with you on this one. He may have forgotten to do so. You may want to e-mail him? He's probably as good a source for the answers as anyone.