The Simmy proudly wears its name in small parchment roll on the breathplate, with a rather chaotic typo:
As far as we know, according to Mr. Visser, the first Simmy nose flutes date from 1952. They were probably european made, and could have been German. This drove Mr. Maikel Mei to hypothesize that the Simmy was the ancestor of the Swan nose flute.
Well, wether we have absolutely no piece of evidence of such a statement, it's however a real possibility. The Swan was launch in 1958, and the 1952-born Simmy should not have been produced during a very long period, else it would not be so rare.
But more : there are many resemblances between the two nose whistles... They differ by the size (Simmy is smaller) and by the shape of the mouth shield, square on the Simmy, perfectly circular on the Swan. There is no upper-lip rest on the Simmy, and the labium is not beveled as it is on the Swan. But both share subtle morphologic details.
The front shows other similarities. Both babies are two-colored, one reserved for the airway cover, which in embossed with the logo. And both show the famous "pair of injection stigamata" which help to date a Swan [like Leda??:)], however smaller in diameter on the Simmy.
So... Is the Simmy the ancestor of the Swan? Certainly. But what's the meaning of this word and what relation do those nose flute have? Impossible to say. Was the Swan an improved model designed by the Simmy producer who was german? Or was the Swan simply "inspired" by the Simmy, but made by another factory? The first element of answer would be to know for sure in which country the Simmy was produced.
A small sound sample recorded with the Simmy, which sound is a bit "blury":