Wisecracks are made at the expense of soldiers in costume of ancient times in Aldershot.
Full title reads: "Aldershot. Troops ... for the use of! The Sergt. Major has many a wisecrack at issue of costumes to 'Ladies and Gentlemen' taking part in Aldershot Tattoo."
Soldiers walk along row of tables where various items of fancy dress / costumes are being handed out. Closer shots show one soldier trying on hats - they are too small.
Officers inspect men dressed in a variety of ancient military uniforms - Romans, Vikings etc. They make jokes about the uniforms.
N.B. Presumably these troops were getting dressed up to take part in the Aldershot Military Tattoo.