
About Wim van der Helm
This author has not yet filled in any details.So far Wim van der Helm has created 2 blog entries.
New LOT of Sandarak
By Wim van der Helm|2023-03-17T23:20:47+01:00Januar 14th, 2023|Categories: Collodion, Photo Chemistry, update|Tags: coating, sandarak, varnish|