Source: Richard Weston
anyone assist? We have discovered an old mechanical adding machine in our
basement. It is an ADDO made in England by AGRELL MACHINE Co. Ltd. On a
plate there is inscribed Mod.9. and underneath this E61644. It has 77 keys
with figures (including ¼, ½, ¾ ) and 6 red keys. It weighs approx.
11Kg. It was covered with its original canvas cover. The machine itself is
in excellent condition but the cover has seen better days! I would like to
have an idea of its year of manufacture and its approx. value. (if any ).
I can email a photo if anyone needs more detail. Thanks for looking."
Richard Weston. United
|"If this is one of the
miniature adding machines - it was manufactured in 1920. There is also a
printing version manufactured in 1923. I'd appreciate if you can send me a
I reviewed your machine with more detail
based on your pictures and I have to say that it is not the model I told
you in my previous message. The manufacturer of that model was A.B. Addo
of Malmo, Sweden, while the manufacturer of your calculator is Agrell from
England. Unfortunately there is very little information about this
manufacturer and model. My recommendation is to contact Nigel Tout, a
British collector of mechanical calculators. The following is a page from
his Website that mentions the ADDO calculator: http://www.vintagecalculators.com/html/british_calculators.html
Yes, we would like to see the picture of the 'Sterling' Addo model 9 as well!
Please read more about the different Addo models on my page
Yes, that's right, the model survey is in Swedish only.
But here's a translation:
Modell 1 = the original Addo model.
Years of manufacturing: 1926-35 ( it stopped with the appearance of the Addo X)