Things are tough right now ...

They're tough for everyone :( But when coronavirus hit here in the UK, the museum had to close its doors to the public, and we lost practically all our income overnight.

Please Donate Via Just GivingNo visitors, no workshops, no events, no school visits... no income. We know that things are tough for everyone right now, but if you can afford to help us through these tough times please donate what you can.

There's over 36,000 exhibits here! That should keep you occupied for a bit - get searching!

Or come and get involved on our social media channels ...

      Twitch  Facebook          Online Gift Shop      

Thank you.

Mechanical Calculators



Addiator Hexadat
Addiator Octadat
Addo Multo Pinwheel Calculator
Adwel Adding Machine
Adwel W504 Full-keyboard Adding Machine
Brunsviga 13RM
Burroughs Mechanical Desk Top Calculator
Busicom Mechanical Calculator HL-21
Facit 1004 Mechanical Calculator
Friden Model H8 Calculator
Kingson Pocket Calculator
Lagomarsino Numeria Model 7203
Monroe Educator
Multo 13-5150 Pinwheel Calculator
Numeria Modello 9200
Olivetti Summa Prima 20
Olivetti Summa Prima 20 (pre-decimal)
Produx Calculator
Taylor's Sterling Currency Addometer

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