Franklin Stool

Hi folks, I'm conteplating of building one of these Franklin Stools (invented by Benjamin F. these darn chair folding out to a step ladder).
I'm looking for pictures of the original (style) and some measurements / plan. What I've found up to now are only cheap remakes in some catalogues.
Can anybody help?
regards Matthias
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.