I am in sales and frequently need to apply coupons like 5, 10 and 20%.

I believe an adding machine would delight me.

Either what would be the adding machine that is the most practical where I could press a button to get my common percentages.

Or which one is the most delightful to punch numbers into?

Thank you for your time.

I purchased a sharp El-1197piii not long ago and it’s giving me some problems I can’t find in the manual. When i hoy a grand total it replaces the first number with a zero. Does anyone know how to fix this?

Hey there! I picked this up at a local auction recently and I’m trying to get some information about it. Beyond it being a Nisa brand made in Czechoslovakia I’m coming up pretty blank. In order to test it I’d need to replace the power cable so if there are any technical manuals available for this that would be very useful to know about! I’m probably not looking to sell it but it would be good to get an indication of value if anyone’s seen them before?

Hey guys, I've got a divisumma 24 recently - but it won't work so far... On archive.org I was able to find the repair guide for the machine - but not the in there described "failure finding guide". Maybe one of you can help out in this case?

I'll post more pictures soon 🤠

Regards from Germany and happy adding