This is the 3d model, which I printed before making my Georgian Styled Library steps from wood.
I made the model to make sure all my angles were correct and that it fitted together. I then printed templates from the drawings to cut around.
The scaled model would look nice in a dolls house, or if your are a wood worker it could be scaled back up to make one.
I used Pitch Pine salvaged from some old church pews. It was a fun project... but involved a lot of time on a lathe.
NB The bottom step seems to have a glitch when viewed on here... when I open it in FlashPrint, it seems fine. Let me know if you have any issues.