Includes changes to be made to U.S. Army technical manuals about artillery equipment for auxiliary sighting and fire control.

"This manual is correct to 10 April 1950."--Page 1. "October 1948."--Front cover.

Scope --Lubrication and cleaning of mechanical parts -- Organizational spare parts, tools and equipment -- Description -- Specially designed tools and equipment (Superseded) -- Specially designed tools and equipment -- Operation of azimuth and spotting instruments -- Specially designed tools and equipment -- Description -- Tabulated data -- Operation -- Specially designed tools and equipment -- Description -- (Superseded) Data -- Specially designed tools and equipment (Superseded) -- Appendix II References.