10 ms·I own an Aristo 868, a Hemmi No. 149, a 62/83N and a mint condition NOS 2/83N. Also an HP-48GX.by SamReidHughes 8y agoI own an Aristo 868, a Hemmi No. 149, a 62/83N and a mint condition NOS 2/83N. Also an HP-48GX.