Hohner's Best Hammered Reeds Quartet harmonica

I saw this Hohner’s Best Hammered Reeds on a Quartet harmonica. Can anybody please tel me in which years these harmonicas were manufacture with this logo?
Thank you

Hi Fanie,
without a photo it’s difficult to answer your question. Can you post one?

Here is a picture

Interesting, I’ve not seen this model before. Does it consist of 4 individual harmonicas? The practice of hammering reeds went out of usage a very long time ago. I’ll ask the curator of the German Harmonica Museum, Martin Häffner.

Yes, it is a Quartet with four harmonicas.