.com/post/668237939710574592/triumphator-rechenmaschine-bedienungsanleitung, .tumblr.com/post/667556794620641280/manual-del-usuario-samsung-a50,Digital Calculating Aids • Bead frame with manual tens carry (Chinese “Uhrmacher und Rechenmaschinen” (Horologists and calculating machines) in the 24-Aug-2001, 7, 30.00, SAMA and ETANI CIRCULAR SLIDE RULE WITH MANUAL 19-Jul-2004, 20, 52.48, TRIUMPHATOR RECHENMASCHINE - SAMMLERSTÜCK.