The collection conisists largely of photocopies dating from around 2007, with the original records dating from between 1888-1935. It is the dates of the original items which are represented in the list below. Newsletters dating from 2006-2007 and featuring a retrospective look at Tanakadate were added to the collection by his great grandson, Akira Matuura, as were photographs featuring Matuura's visit to Glasgow in 2005.
- Correspondence (photocopies), 1888-1935;
- Newsletters, 2005-2006;
- Photographs taken during Akira Matuura's visit to Glasgow, 2005;
- Business bills and receipts (photocopies), 1888;
- Japanese postage stamps designed by Akira Matuura, c2000s.