1940’s International Correspondence Schools Lesson Books by I.C.S. Staff. Items are in Fair to Good condition. Items show their age and staples are starting to show corrosion. Please see individual pictures for details. Book List:Elements of Projections Drawing & Elements of Drawing Part 2 5649 Lessons / AssignmentsDrawing for Welded Parts 5645-1 Edition 2 Elements of Algebra 5633 A2 Part 1 / 5633 B-1 Part 2 / 5633 C-3 Part 3 / 5633 D-1 Part 4 Edition 1Geometrical Drawing 5598-3 Edition 2Logarithms 5254-2 Edition 2Machine Sketching 5807-2 Edition 2Engineering Drawing Part 3 Mechanical Drawing 5739-1 Edition 1Practical Geometry and Trigonometry 5567 / 5567-1 Edition 1Chemistry for Engineers 6261 A Part 1 / 6261 B Part 2 Edition 1Basic Mathematics Powers and Roots 1980-1 / 1980-2 Edition 2Basic Mathematics Elements of Arithmetic 1975-1 / 1975-2 Edition 1 Basic Mathematics Fractions 1976-1 / 1976-2 Edition 3 Basic Mathematics Ratio and Proportion 1979 / 1979-1 Edition 2 Basic Mathematics Decimals 1977-1 / 1977-2 Edition 3 Basic Mathematics Weights and Measures 1978-1 / 1978-2 Edition 4