[Conservatrix]

Ones signature alone it shows that persons level of education.

Perhaps to demonstrate your own fine education better, that sentence should be re-written: "One's signature alone [remove "it"] shows that person's level of education." Nouns which are in the possessive form require an apostrophe...

[danmar]

Perhaps to demonstrate your own fine education better,

While English is not my primary, me thinks I can allow my self not to be perfect and proper.
Not to mention my hate for grammar.