The crossed sevens thing is weird in the US (and in Britain a little) because ones are usually a simple vertical line, but in mainland Europe is common for the 1 to be written with a "roof/rewf/ruff" but no base so it can look like a 7, so the 7 is crossed to differentiate.
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The most difficult thing is the decision to act, the rest is merely tenacity Amelia Earhart
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