How to access uploaded from REST API

Summary:

I can get a hold of a uploaded file name from a web application (REST). Need to save it on another server.

Content (required):

I can get a hold of a uploaded file name from a web application (REST). Need to save it on another server.

So i have a .NET / C# console application. I can access the file name through this resource:

...../xxxxxxxx.org/services/rest/connect/latest/incidents/201927/fileAttachments/48111

As part of the JSON response, i get "fileName": "Biobank Adult ICF.pdf",

So, in the scope of the application (while still logged in as an OSvC user), is there a way to grab a hold of the actual PDF file so that I may save it to a local resource or a FTP server?