Fig. 2
From: Indoor mould testing in a historic building: Blickling Hall
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40494-018-0218-x/MediaObjects/40494_2018_218_Fig2_HTML.jpg)
Various means developed by National Trust to minimise odds for mould growth. Left: new timber insert at back of shelf with ventilation hole; middle: taffeta cover protecting text blocks from dust accumulation and resultant mould growth; right (© Andrew Bush/National Trust): cork spacer to support frames so that they are not flush with the wall