Expert: DR. ROBERT LERCH - 1/27/2009

Question
I call on you again Dr. Lerch.  Thank you.

My brother has a very old set of Ross Mensuration Blocks & dissected geometrical solids.  They were made by WW Ross company.  There are approximately 80 various shapes, some of which unfold.  They are in their original box.

Are they of value?

Answer
your blocks def. have some value.. hundreds.not thousands...it depends on what shapes are in the set....condition....etc.... i would like to talk to you about these as i might have some interest ( i collect geometry wooden blocks) can i call you ?  thanks