The height of the numbers is 40 mm. The indication is made through the lateral surface of the cylinder. The IN-18 lamp has a glass design with an RSh31 connector. In-18 Used, without factory packaging.The item "IN-18 IN18 -18 Gazotron, Nixie tube for clock, Used, Lot 6 pcs" is in sale since Friday, May 7, 2021. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets". The seller is "andkost1900" and is located in Lviv. This item can be shipped worldwide.