If early models had plastic switches and started with serial number 1024, what the heck do I have? Its a DC-5 with Metal switches and serial number DC-0036. This thread, though old, seemed the right place to ask.
https://drive.google.com/file/d/1SxXzMhn9O5lGk-reLa8maxBfgRZAc7zQ/view?usp=sharing