-ama10- 7- — -4- 'link'

She gave up on the literal, and instead read it as a visual riddle: Draw the hyphens as lines:

Maybe it’s : ama10 = (1×13×1)+10 = 13+10=23 → W 7- = 7-? Without second number → 7th letter G minus something? -4- = 4 with minus on both sides = 4×1×1=4 → D -ama10- 7- -4-

The message was etched into the old typewriter’s platen: -ama10- 7- -4- She gave up on the literal, and instead