John,
Thank you for your insight it is much appreciated. Do you mind if I ask what makes you think it’s older? Also, If it was a family sword, would it have more specific markings on it (like family name) or is that just in some cases? My apologies I have very little knowledge regarding this stuff. Yes, you are correct the bayonet is a čsz Czechoslovakian made m24 Mauser bayonet.