A wallet or billfold (for holding banknotes)(noun)
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Use "notecase" in a sentence
"Mouldy James took the cutting back and put it carefully into his notecase."
"By the way, I have unfortunately left my notecase at home."
"He turned to his left-toward Raffles, actually-and took a dark brown leather notecase from his breast pocket, standing so that his body screened its contents from my view."