NUMBERS 1 TO 100
the hundred chart · primes picked out in colour
Free
MULTIPLICATION TABLE
1 to 12 · colour intensity = size of the product
Free
MORSE CODE
26 letters and 10 digits · dot, dash
Free
BICYCLE CLASSES
frame, wheel by ISO 5775 and handlebar — three signs of a class, and what the frame is rated for
Free
CAR CLASSES
segments A to F by length and bodies by box count — how to name any car you see
Free