Crosley Pup circa 1920 or so. Its worked ever since it was new, my father bought it when he was 9 or 10. I fire it up every now and then. Last time was around 10 years ago. The tube is a replacement. Luckily I have a couple extra tubes. The Crosley embossed insulators in the radio strain folder is an example of what could have been used in the antenna setup, although I am not sure if they date back to this period. [id=210187402] to see the insulators.