The Union automatic revolver (also known as the Lefever revolver) was a .32 calibre revolver of French origin[citation needed]. It was designed by Charles F. Lefever (US Patent 944448, 1909) and manufactured by the Union Firearms Company of Toledo, Ohio. It was produced in limited numbers until 1912 when production ceased, marking the exit of Union Firearms Company from the handgun business. It was similar in action to the Webley Fosbery automatic revolver, but had a shroud that protected the recoiling upper half from contact with the firer's hand.