| CustodialHistory | These plans were found in the strongroom in 2010 with no accession or reference numbers. It appears in the 1970s and 1980s many plans were simply shelved in the strongroom and not annotated with any accession numbers. With the major boxing and wrapping programme of 2010/2011 such plans were gathered together and subsequently (2013) made into an artificial 'miscellaneous map collection' so that they could be catalogued. |