Getting an Feature Image from Airtable to Ghost via a Zap

I’m trying to transfer an archive of previous posts that are archived in Airtable into my Ghost site using Zap. I have everything working but the Feature Image. When I go to select it in the Zap, there are multiple image-related fields available for the basic image that I have saved in an Attachment field in Airtable. Any ideas what I need to do to get these relatively small jpg headers from Airtable into the Featured Image section of my posts?