As I was going through ebay listings I came across this one which was listed as a 1932 model. I looked it up in the IHC database and found this to be the second highest number in the database. Assuming the number in the listing is correct because you can't make it out in the photo. Obviously not the correct case for it so it won't get put in there but an interesting discovery all the same.

Steve

One of the last made 161A's