Thank you very much for viewing this item on Mercari. This item is an antique metal trademark plate from the late Meiji era to the pre-war Showa era, right-to-left writing, a collection of original items. It has a substantial weight and a profound feel. It measures 11 cm wide, 8.5 cm long, 1.5 cm thick, and weighs approximately 243 grams. The material does not react to a magnet, so I believe it is made of brass. The letters "Manufactured by Yamaguchi Osaka" and the pre-war right-to-left inscription "Dai Nippon Osaka Yamaguchi Manufacturing" are engraved, and I believe it is a trademark metal plate, possibly for a large safe. It has a very interesting texture and appearance, allowing you to feel the passage of over 100 years. I would like those who are interested in or curious about this rare, pre-war, original trademark metal plate collection, as well as overseas collectors who occasionally purchase such items, to experience its profound, historical feel in their own hands. The condition is considered to be good for an item of this age.