Marten Toonder - proofs calendar Groningse Waterleidingsbedrijf

Complete 4-stage printing set of the calendar published in 1963 by Groningse Waterleiding. This calendar consisted of 4 plates and calendar months. Included are a calendar leaf (the plate from which the calendar months were cut) and 4 printing stages of all 4 leaves. All 14.5 x 24 cm. - and the proof of the calendar months' outer margins.

A unique find, found during the cleaning of the printing office where the calendars had once been produced. Saved from destruction by one of the cleaners who considered these items too special too throw away.