Agent of Deterioration No. 3 – PHYSICAL FORCES
One of the most visual agents of deterioration is that of physical forces, and is perhaps the foremost agent which springs to mind when we are asked not to touch things in historic houses. Although we are trying to make our collections more accessible and engaging to visitors, hopefully this blog post will show you why sometimes it is in an object’s best interests to leave well alone if possible.
The main effects to objects are shock, vibration, abrasion and gravity. Often these effects are unintentionally inflicted upon objects.
For example, the photograph below shows a detail from the corner of one of the pier tables in the Top Hall. Look carefully at the arm and shoulder – it has recently been restored as the paintwork had been rubbed off, showing the different layers underneath.
The restoration makes it look as if the figure has always been in perfect condition. Yet this has not been the case…
Look at the picture below, which shows the damage that repeated rubbing had inflicted upon the carving and paintwork. This was caused by a number of factors, all human related. The positioning of the tables are such that when a wedding is held in the Top Hall, visitors come in and brush against the tables. In the past, visitors have also tried to use the figures as hooks to hang their handbags and coats on! After a few years, you can easily see the physical damage caused.
Physical forces can be cumulative and occur over time (as seen above) or can be sudden and dramatic, such as dropping an item and breaking it, or larger disasters such as earthquakes.
Effects of physical forces include scratches, dents, holes, rips, tears, and breaking. Below are various photographs of objects at Nostell Priory which have suffered from physical forces. See if you can find a connecting factor between all of the images!
Below is a photo of the servants’ stairs. In this instance, it demonstrates a case of physical damage that is not all doom and gloom! The repetitive movements of servants running up and down the stairs for many years has worn away the stonework, creating curved steps rather than flat ones. However, rather than being a case for restorers to repair any damage, the changed look of the stairs adds to the character and history of the house, and gives it charm.
Did you guess the connecting factor – that’s right, it’s us, humans!
It’s often noted that the worst threat to historic objects are humans, and this is probably true. However if we are careful how we treat them there is no reason why we can’t enjoy these collections for many years to come.