We have enlisted a designer to get a proper logo for The Calculator Store. A logo is required in many places as SEO enhancement - but you did not come here for the logo, but because of our common love for HP old calculators!
Well, here is the new logo in small and original sizes. What do you think about it? I think it joins simplicity with the minimum information to identify a HP calculator: the two shifted keys in blue and yellow, with the dark brown color typical of old HP models. Due to the size and shape, ir could be used with a hypothetical iphone/android app!