Leon V. Pinnock successfully completed and received a passing grade in 3.091x_2: Introduction to Solid State Chemistry, an online course offered by MITx through edX. The certificate was issued on August 29th, 2014 and its authenticity can be verified online at https://verify.edx.org/cert/91b6d5af2fc548578da927a2319405b1.

1. David H. Koch Professor of Engineering
Faculty Director of the Lemelson-MIT Program
Department of Materials Science and Engineering
Koch Institute for Integrative Cancer Research
Massachusetts Institute of Technology
Michael J. Cima
Director of Digital Learning
Massachusetts Institute of Technology
Sanjay Sarma
HONOR CODE CERTIFICATE Verify the authenticity of this certificate at
CERTIFICATE
HONOR CODE
Leon V. Pinnock
successfully completed and received a passing grade in
3.091x_2: Introduction to Solid State Chemistry
a course of study offered by MITx, an online learning
initiative of The Massachusetts Institute of Technology through edX.
Issued August 29th, 2014 https://verify.edx.org/cert/91b6d5af2fc548578da927a2319405b1