I hope to work out this page soon as these fuzes are quite nice in details.
Nr19-Nr19C1, C2, C3, C4, straight levers, curved levers, detonators, practice charges.

Photos below © M. Jochoms

These photos show the first model in the dutch "mousetrap-mechanism" Nr.19 series.

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Nr19C3

Nr19C4

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The drawings below show the Nr.19C3 on the left, and the Nr.19C4 on the right.
Both fuzes were for the Nr.6C1 practice grenade.
The tube "vertragingsbuskruitpijpje Nr.9C1" held a delay-blackpowder charge.