Elk Refining Company (later Pennzoil) loading racks in West Virginia late 30s or early 40s. Note company houses beside loading rack. Pictures found on a Facebook group.

It was an expensive share of stock, too. 100 dollars in 1925 is equivalent to just a little over 1500 dollars today.

Tim, Olfa makes a nice circle cutter. Amazon.com : OLFA Rotary Circle Cutter : Office Products Mike Settle

Have you guys heard of Archer Fine Transfers? He makes rivets in various sizes. He is very popular with the military modelers. Mike Settle