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BTA Presentations: Zoom Recordings

You will not need a YouTube account to watch these presentations.The Powerpoint slides from the presentations are also avilable (in PDF format) if you wish to look at any slides in more detail. The link below the video will open the PDF.



18 March. Jon Matthias. The Statue of Liberty on Stamps

PDF of presentation


16  February. Charles Oppenheim. It's Patently Obvious

PDF of presentation slides


13 January. Wendy Buckle. Watermarks: from medieval trademark to modern security feature

PDF of presentation slides



09 December. Andrew Millington. Aspects of my Copper Collection

PDF of presentation slides