Fake Inventor of the Soviet Union?

[Stahanov]

I bought an Inventor of the Soviet Union-badge and a perestroika-pin from an online auction. The pin seems kosher, but I have a few doubts about the IotSU. The award feels very light, and the connecting ring between the ribbon and medal doesn't seem original (it's made of an yellow metal). Also, it seems that the rocket/Star Trek triangle is not riveted in straight; there's a gap between the lower left point of the triangle and the laurel. There's very little information on the internet about the IotSU, just that it was established in 1981 and awarded for innovative proposals. Rarity? The swan-like mint mark? Also, the pin has a mint mark that looks like a viking ship! What's this?

I posted pictures on the obverse and reverse of both badge and pin. I quite like the latter! :D

Thanks,
Stahanov