Keuffel Esser Audiovisual Diazo Transparency ALGEBRA VINTAGE Instructors Ref. Educator-Approved Masters Start Price USD 20,000.00 Current Price USD 20,000.00 Time Left 2 days 12 hours 18 minutes Bid Count 0 Buy It Now Price - Reserve Price - Start Time Monday, October 13, 2008 End Time Sunday, January 11, 2009 Location NW Wisconsin See more about 'Keuffel Esser Audiovisual Diazo Transparency ALGEBRA' Description Up for auction is this unique, vintage piece of educational history.  Here is a Keuffel & Esser Audiovisual Educator-Approved Diazo Transparency Master for Algebra.   These are the master transparencies used by the instructor for the entire Algebra course.  They are dated 1968 and in excellent condition.  Please look at the pictures for more detail.  Please contact me if you have any interest in any of these transperancy masters.  Up for auction soon will be the following Keuffel & Esser Audiovisual Educator-Approved Diazo Transparency Masters: Chemistry - 1962 Descriptive Geometry - 1969 Earth Sciences - 1968 Electricity - 1967 Geometry - 1962 Instructional Media - 1969 Physics - 1962 World Cultures – Canada - 1968 World Cultures – Latin America - 1969 World History – Unit 1 Sub-Saharan Africa – 1966   This auction is for the ALGEBRA masters only.  Please contact me with any questions. Paypal only please.   Place a Bid!