Silver Arrows#BrownWatson feel like a shadow of their former selves. We had loads of their books back in the day, very charming. Now their website shows a few very generic looking books.
I vaguely remember this book as being published by them here in the UK, but according to this site, it wasn't.
https://illustrated-books.co.uk/product/snow-white-pop-up-book-by-vojtech-kubasta/
This says 1961, so maybe we had a later edition published by Brown Watson?
I wish we still got stuff like this. Unfortunately I can't do a flip through of that book as it belongs to one of my sisters and she took it with her a long time ago.