The first two have CAD rendered images only. They have been printed, but assembly requires cutting away the shield locating lug used on the last two.
Type 4 15 cm Howitzer Japanese Heavy Howitzer
Canon de 105 mle 1913 Schneider Medium Howitzer with French gun shield
Cannone da 105/28 modello 1913 Medium Howitzer with Italian gun shield
Canon de 155 C modèle 1917 Schneider French Heavy Howitzer
The chassis and gun barrel of the last three gun were all produced by the French Schneider company, but widely exported and used throughout WW1 and WW2. The first gun is the aberrant, I have used the same chassis, wheels and recoil spade from the other guns on a Japanese artillery piece that was independantly designed and produced. It looks close enough and there is a lack of Japanese WW2 field artillery in 28mm scale.
These are now all in the moulding process, annoyingly my new Silicone requires a week to set before casting. This little jumble is the stuff from my last post that has just been sent off to the printer: