Police suspect they were dumped by the thieves as they are not of significant value.
A money tin, old coins, a jewellery box and foreign currency were also found in the pillow case.
Anyone who believes the items are theirs are asked to contact North Yorkshire Police on 101, select option 2 and ask for PC Robert Howe.
Or you can email firstname.lastname@example.org
Please quote reference number 12150086976 when calling.