Most of the props featured here were designed and produced by the H.P Lovecraft 
Historical Society (http://www.cthulhulives.org/toc.html).  You can find them at:

http://www.cthulhulives.org/toybox/PROPDOCS/PropDocs.html


Another point of interest is that Harrison P. L'Godt's handwriting not-so-coincidentally 
matches that of Howard Phillip Lovecraft himself.  Lovecraft's handwriting is just one 
of the many fonts also available through the HPLHS:

http://www.cthulhulives.org/toybox/PROPDOCS/PropFonts.html


Original props not provided by the HPLHS include:

- the birth certificate
- the blueprints
- the paintings
- the invitations
- the page from the eldritch Occult Text

.s