Know your flying ducks?

For an ID request this ones a little unusual. I actually know what its is!

But I don't know when it was made or if it's unusual. I only know that I have not been able to find another with the same back. This stylish duck has under the glaze in the center a number. From what I can read and from measuring it I take it to be the 596/2 duck measuring around 22cm (I can only read the 96 bit through the glaze).  

I only picked this up yesterday so as per usual I had a dig around on the web. So far I have not seen any with the same design back. All of the ones I have found have a hole on the reverse and the Beswick mark in a circle. This one has a hole above the wing like a wall pocket, not on the back and the Beswick name is a gold stamp. To add to the confusion we have a retailers sticker for the Abercrombie & Fitch sporting goods store in New York that closed in the 1970's. It was the type of high end store you bought your guns and attire to go out shooting real ducks.

So my questions are:

When was this made?
Has anyone seen another?
Is this an export design?
Or is it simply rare?

Any comments welcome.

Thanks

in my beswick book it says " these also exist with a small pocket between the wings" dosent say if rarer or give a different value

Funny, Denby did two versions of wall ducks, with and without the pocket, in the 30s/50s.

which ones were admired by the nation adorning Hilda Ogden's Murial ?

Lots of manufacturers made them, everyone copying a good idea I guess,
incliding Royal Dux! some are marked "foreign", who was first I'm not sure.

From what I have been able to find out Beswick stamped some of items they made in the 30's and 50's with gold marks. I have not been able to find the same mark but what I have seen it is pretty close. The Abercrombie & Fitch store the sticker was from closed in 1977. But to me it doesn't look like a 70's sticker or even a 60's sticker. I think it looks earlier. So that's my guess at the moment.