- Fakes And False Promises
- Herzstark Electric Mechanism
- Bloch Schnellkalulators In Collections
- Diderot and D’Alembert 1759 - Mechanism of the Pascaline
- Article in La Nature, 1893 on the Centigraph
- Original Spalding Adding Machine Patent - US Patent 146407
- Old Babylonian Tag Notes
- Operating Instructions For A Pascaline
- O.J. Adder Instructions for Use
- Exemplar and Replica Pascalines
- Surviving Pascalines
- Catalogue Amendment By Auction Team Breker
- Extracts from Kepler’s Letters
- Pascaline Mechanism
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