These cookies are absolutely essential for our website to function properly.
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
These cookies may be set by third party websites and do things like measure how you view YouTube videos.
Amgueddfa Cymru – Museum Wales
Information and instructions on Pneumatic Blasting Machine PM1. Printed in b/w on both sides of sheet of paper. Four holes punched at left for file.
