The shell is fired from the 7.5 cm l.I.G. 18 (light infantry howitzer) with a separately loa-ded Q.F. cartridge. The colour of the shell is the usual deep olive green with the numeral "13" stencilled near the head and the weight class stencilled in Roman numerals just above the shoulder. The stencilling is black. A single copper band, 0.16 inches wide, is fitted at 1.1 inches from the base. The nose fuze is stamped l.Igr.Z. 23 n.A. above the flange and is fitted with a setting plug for optional delay. The two setting position are stamped "O" and "V" respectively. The overall length of the fuzed shell is 13 inches and the weight, filled and fuzed, is 12 lb. 2 oz.

The shell consists of two main parts, the body and the head. The head is screwed into the body and is screwthreaded internally to receive the fuze and a disc carrying an ex-ploder container. The container is of steel and is screwthreaded externally near the head for insertion in the disc. Two slots are formed in the wall at the head for the inserting tool. The length of the container is 3.07 inches. The weight of the empty shell is ap-proximately 9 lb. 12 oz.

The bursting charge, as indicating by the numeral "13" painted on the shell, consists of 1 lb. 4 oz. of cast Amatol 40/60 with a cavity for the exploder container and a smoke box. The depth of the cavity, measured from the mouth of the fuze-hole, is 3.7 inches. The lower part of the cavity contains a No. 7 smoke box (Rauchentwickler Nr. 7) which is 1.1 inches in length.

The gaine, carried in the exploder container, is the gr.Zdlg. C/98 Np. This is the larger size of the C/98 gaine with a filling of P.E.T.N./wax. Further details are given in the sec-tion on German gaines in Pamphlet No. 6.

The fuze, l.Igr.Z. 23 n.A., may be given on package labels as "l.Jgr.Z. 23 n.A.". A des-cription of the fuze is included in Pamphlet No. 1, page 11.

The separate loading Q.F. cartridge used with this equipment consists of a brass case closed at the mouth by a millboard cup and containing a propellant charge, weighing ap-proximately 2.5 oz., arranged in 5 sections. The percussion primer used is the C/12 n.A. The case is 3.5 inches in length and has stamped in the base the case model number, "6341", and the designation of the equipment, "l.I.G. 18" (leichtes Infanteriegeschütz 18). Further details of the propellant charge are not yet available.