Drawings - help

[Newton Hunt]

Dear Friends,

I will be teaching a course on the evolution and technical
aspects of the piano in an adult continuing education
program this fall.

I would like to be able to show diagrams or pictures of the
different piano actions over the centuries but I have not
found an easy source of these except in books I am reluctant
to scan.

If anyone knows where I can get such drawings for down load
I would greatly appreciate it.

	clavichord
	harpsichord
	Christifori
	etc.

		Newton