Frederick Post Company Versatrig sliderule. This is the one I used most in highschool (though it belonged to my father). Frederick Post Company; Versatrig; sliderule
Frederick Post Company Versatrig sliderule. This is the one I used most in highschool (though it belonged to my father). Frederick Post Company; Versatrig; sliderule
Frederick Post Company Versatrig sliderule. This is the one I used most in highschool (though it belonged to my father). Frederick Post Company; Versatrig; sliderule
Frederick Post Company circular sliderule. I think this was probably quite a good one, but I never really learned to use it beyond the most basics, and never used it much. Frederick Post Company; circular; sliderule
Frederick Post Company circular sliderule. I think this was probably quite a good one, but I never really learned to use it beyond the most basics, and never used it much. Frederick Post Company; circular; sliderule
Frederick Post Company circular sliderule. I think this was probably quite a good one, but I never really learned to use it beyond the most basics, and never used it much. Frederick Post Company; circular; sliderule
Frederick Post Company circular sliderule. I think this was probably quite a good one, but I never really learned to use it beyond the most basics, and never used it much. Frederick Post Company; circular; sliderule
W. M. Welch Company pocket sliderule. This is made of folded plastic sheeting, the slide slides very stiffly after all these years. It was pretty clearly a promotional giveway. W.M. Welch Company; sliderule
W. M. Welch Company pocket sliderule. This is made of folded plastic sheeting, the slide slides very stiffly after all these years. It was pretty clearly a promotional giveway. W.M. Welch Company; sliderule
W. M. Welch Company pocket sliderule. This is made of folded plastic sheeting, the slide slides very stiffly after all these years. It was pretty clearly a promotional giveway. W.M. Welch Company; sliderule
Aristo Multilog sliderule, belonging to my father but which I sometimes used in highschool Aristo; Multilog; sliderule
Aristo Multilog sliderule, belonging to my father but which I sometimes used in highschool Aristo; Multilog; sliderule
