Perry 40mm

Les frères Perry mettent en vente sept références pour l'artillerie Française de la guerre d'Espagne en 40mm.
Deux pièces d'artillerie font parties de ces nouveautés. La question reste posée quant à l'échelle choisie, pourquoi ne pas avoir gravé ces figs en 42mm ou en 32mm ce qui les aurait rendues compatibles avec d'autres marques?

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Brothers Perry put on sale seven references for the French artillery of the Spanish Independance War in 40mm.
Two guns are part of these releases. The question remains as for the chosen scale, why not having  casted these figures in 42mm or 32mm which would have made ​​them compatible with other brands?

PE 90 French Foot Artilleryman running up gun, handling trail spike, fatigue cap.
PE 89 French Foot Artilleryman running up gun, handling trail spike.
PE 88 French Foot Artilleryman running up gun, pushing wheel.
PE 87 French Foot Artilleryman running up gun, ramrod over, sleeved waistcoat and fatigue cap.
PE 86 French Foot Artillery NCO ordering crew.
PE 85 French 6’’ Howitzer (resin carriage and wheels, other parts metal)
PE 84 French 8 pdr ( resin carriage, wheels and ammunition box, other parts metal)