Alphabet Soup Prefix Conundrum

[Matt Agajanian]

Hello all.

Although I think these cals were works of art and quite frankly, for me at least, easy to navigate, I want to ask a question.

Not so much with the HP-65 but, most notably the 67, HP was getting cramped for space to put nomenclature on these calcs. So, since this was so problematic, why did they design the HP-34C with such an overwhelming layout with the three prefix key scheme?