Wow, you have a neat old record but no way to play it. It's obviously not published anymore and record companies that know who even owns it may not think it's profitable to put out on CD. Is it lost forever? No, sox saves the day. If you can't find a 78RPM player with reasonable sound quality and phon jacks on the back, you can use your 45 RPM player and the program play to get your tune back. This is a hack and it's not the best thing for your record or your player, but it works.
You will need
Play your outfile to see if you like it.