Dunno if it's weird, but definitely a mixed bag on the '72 Paramount I recently built up:
Campy Athena 53/39 crankset (ca. 90's)
Shimano 105 RD (ca. 80's)
Campy shifters (ca. mid-60's)
Shimano 60 FD (ca. late 70's)
Shimano 105 brake levers (ca. 80's)
Dia-Compe center pull calipers (ca. late 70's)
SR seat pin (ca. 80's)
Selle Italia Turbo Bernard Hinault saddle (ca. 1984)
Cinelli stem and bars (new logo, ca. 80's)
Bontrager bar wrap (2011)
Maxxis tires (2008)
Shimano 105 hubs laced to anodized Wolber Super Champion rims (700c) spaced to five speed... (ca. 80's)
Lyotard pedals (date?)
...Hmmm. Five decades and God knows how many nationalities represented. (Probably should have gone with Zeus Criterium RD just to give the Spaniards a nod.)