Tobacco retailers in France will be offering bitcoin ($BTC) vouchers in denominations of 50, 100 or 250 euros (around $57, $114 or $285) from Jan. 1, 2019. Local crypto startup Keplerk is said to have signed a deal with a cash register software provider to facilitate the sale. Keplerk will allow customers to convert their vouchers into bitcoin and store it in wallets on its platform.