Power Technology Building Annex - Introduction

The  PTB Annex was added in 1986 through a generous donation by Mrs. Dorothy (Aunt Dot) Kougher.  It has some new displays and some items will change.  However, there are several permanent big displays that make this exhibit very interesting.  Take a look inside. 

Power Tech Building Annex 
The Power Technology Building Annex
 Introduction 1  2  3  4  5  6
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