P.J.H. Cuypers with a sculptor at work on the sculpture in the alcove ( very fine!, a daylight collodion silver print not shown gold)
(for photos of the sculpture, see ph 139.4, ph 139.5 and ph 139.15 to ph 139.18, by N.V. Willfried Deyhle's Lichtdruk- en Grafische Kunstinrichting, Amsterdam);