Singlespeed & Fixed Gear - parts advice/specs

so i got a 1978 olympic edition olmo road bike from my parents and turned it into a fixie. i cannot find specs for it anywhere and im also curious about parts.
im looking to buy a new fork, but i dont know if its threaded or threadless. im assuming threaded because its older, but is there a way to tell, or do i have to take it apart?

it's threaded. threadless forks are a relatively recent modification.

yeah, thats what i figured. buuut do you know a good place to find specs for this bike?

your best bet would probably be to ask on the classic rendezvous list ( http://classicrendezvous.com/ ), but be careful.

make sure you read the rules very carefully or you're likely to get in trouble.

if you don't want to deal with the hassle you can pm me and i can ask for you.

If you just want a new fork, KEEP your old fork for reference. The reason we no longer commonly have threaded forks is because they came in an infinite number of sizes. You'll want to measure your steerer.

You can swap it out for a new threadless fork with a threadless headset, but it may prove more trouble than its worth, and there isn't anything wrong with a chrome fork.

Other than that, keep your old parts for reference. Measure your seatpost diameter. Your BB spindle may have to change to improve your chainline, so the threading is the only thing that matters. Italian?