(hex:6E) is a glitch item in Pokémon Red and Blue.
The name of this glitch item is taken from mojibake of Red/Green's untranslated シルバー (Silver) string; which is also the name of the hex:6E glitch item in Japanese versions.
Using this glitch item (unlike the Yellow version of Lg-) will cause seemingly nothing noticeable to happen, or simply use up a turn in battle.