Red dots- I dunno. I've got a couple of those sugino 3-bolt chainsets that have red (actually orange) stickers on the bolts. I dunno why.

I don't know what year the international is. I'll check the hubs (shimano 333) or original derailluer and see if there's any clue. It's chromoly. I don't know if it's completely cromo but it does say chromolybdenum on it (you can see the yellow sticker on the seattube), and the weight attests to that. I'm sure the forks are probably hi-tensile. The dropouts are forged. Either that or they're something in between stamped and forged. It's kind of odd that they are but, there you go. I have another international but it's a Kokusai and I think I've heard the international was called kokusai (japanese for international) and then changed to international, so the kokusai would be older. It's very similar and I think it's pre '75.

The international might look older than it is because it was stored outside apparently. All the aluminum was oxidized and the decals are completely faded. No rust though. I got it, a steyr clubman, and junk frame and a cheap gitane frame with various parts for $50. Took a lot of work, and it's still pretty ugly, but it's a pretty sweet little bike. One thing that's kind of interesting is the headtube/toptube lug, it has a long point and it got brazed on crooked. So you look down on it and the point is slightly bent. Just kinda cool, in a way. It's the little forgotton junk bike that could.