Seal box – lozenge shaped
The base of a Roman lozenge-shaped seal box dating to AD 43 – 250. The example below (“Read more”) shows a nearly complete seal box of a similar design. The holes in the base would allow a cord to enter the box which would then be filled with wax.

The image is of PAS record YORYM-97A047 which is a detecting find from Harrogate, North Yorkshire recorded in March 2016.