Know a little about sun flares but nothing about military flares. Friend who buys and rehabs houses found this in a house he is working on. He would like an ID of this.
1.5" diameter, 3.8"long, rim dia 1.86" Brass base .59 high. What looks likes a standard shotshell battery cup primer with a nickeled primer. Tan paper case. Wad with black printing: GREEN TRACER above dividing stripe, below stripe RED GREEN. Mouth of case has top to bottom .122" green band, .209" red band, 209" green band.
First line case printing: SIGNAL CARTRIDGE MK IV Second line: CONTRACT NO. NORD 4175. Third line: MANUFACTURER I.F.S. Div. Fourth line: LOT NO. 251. Fifth line DATE MAY 1944. Sixth line INSPECTOR G.H.B.
Just above the top of the brass is a 1 at an angle. To the left of the printing is a large anchor with rope. No headstamp or marking on head.
Also what flare projector was this used in?