Good morning.
Somewhat late, the original Schneider 105 mm gun Modele 1913, as it appeared in both French and Italian armies at the beguining of WWII (Italy fielded french built surplus guns, but also Ansaldo built ones). The wooden wheels were replaced by steel ones with solid rubber tires for motor traction, but retained the massive Schneider spade in the trail and a relative low elevation. Pretty good artillery piece, strong and with good range, even in WWII.
NB: The french gun is 3 calibers (12 inches) shorter than the polish version, as Eswube noted previusly.