Photo Sharing. Your Photos Look Better Here. | SmugMug : museum : 2012-09-28 Mintner Field Museum Continental engine 1 was used in Piper Cub. Was there on Friday morning so was dependent on volunteer to unlock things for me. He said Saturday was when they had everything out. Need to get over there then plus downtown Shaffer has a Railroad and Ag Museum that looks like it has some cool stuff but is only open on Saturdays.