Not simple if you have embedded image files in attachment field. An attachment field is a type of multi-value field. If you don't understand multi-value field, review:
https://support.office.com/en-us/art...C-6DE9BEBBEC31
I don't think attachment field can be copy/pasted because it is a multi-value field. What happens when you try?
Also review
https://www.accessforums.net/access/...nds-38039.html
Another problem with the building tables design is if art is moved from one to another, this means deleting record in one table and adding record to another. Deleting records should be rare.
Alternative to redesigning tables is a UNION query to pull the records into one dataset to emulate the single table, but data is not editable through UNION.