Not been to a L'Eroica event, but I'm guessing this would qualify. It's a mid eighties Zunow Road Racer. 54.5 cm squared with a full Dura Ace 7400 group. Interestingly, it has Araya 27 inch rims instead of 700c. It also has Shimano EF dropouts with single braze-ons for fenders. Acquired from Craigslist back in 2020 from a dealer of "Eroica" bikes. Nice gentleman over in Richmond. It's a nice-weather bike for me.