Whistle: who made this?

Hello!
I recently purchased this whistle and wish to know who is it’s maker. The person from whom I purchased it does not know either. The tone from the low through the 2nd octave is consistently ‘pure’ similar to my high D Burke. It lacks really any chiff or breathy sounds. The back-pressure is incredible on this little thing. I can play through an entire 16 bars of a jig with some cuts, taps, and tonguing without the need for a second breath. This is uncommon as on all my other high D whistles I usually breath at 4-8 bars. Can anyone help with a lead to identification of this instrument? Notice, there are some engravings on it.

https://drive.google.com/drive/folders/1X7HcRbmzEe_5n8X_xD_vpGhR-u8xP0u1?usp=sharing

Hans Bracker.

I saw a whistle that looked like this on the irish flute store website. I noticed it was gone the other day. Is this it lol? I thought of buying it myself but I was looking to get a C whistle. When I decided I need to get a good D I was looking at their site and this was gone. Hopefully you like it, if its the one I’m thinking of it seemed like a really good deal.

I miss Hans. Do you know how he’s doing these days, Peter?

I believe he’s currently in Spain and has been for at least months, but don’t know any more.