Tobacco and Salt Museum たばこと塩の博物館
Japan Tobacco's museum: one floor on salt, one on tobacco; 300 yen, closed Mondays.
The museum, run by the tobacco manufacturer Japan Tobacco (the former state salt and tobacco monopoly), devotes one floor to salt and one to the history of the pipe and the cigarette around the world. It moved here, to Yokokawa, from earlier premises in Shibuya (the year of the move differs between the sources read, 2013 or 2015). The collection numbers about 30,000 pieces according to the Japanese Wikipedia, but the official collections page states about 36,000: two sources, two different numbers, neither obviously wrong.
Tokyo
TOKYO SKYTREE, Oshiage 'SKYTREE'
https://theanimetrip.com/luoghi/museo-del-tabacco-e-del-sale