Jean_LAMESCH_Sliderules_Collection_BOX_JL06

1680_LAFAYETTE_99_7102

1680_LAFAYETTE_99_7102

LAFAYETTE 99-7102 US sliderule from 1966, OEM made by RELAY/RICOH in Japan. Has hyperbolic sinus scales Sh1, Sh2. Bamboo corpus, leather case whith rubbed out name of owner Charles Hughes (still readable inside the leather tongue).