As mentioned earlier I won the auction on a Shimano 600 seatpost. NOS condition, and to much to my surprise and approval this particular one doesn't have the 'Shimano 600' running down the front side of the aero section. I will most likely put this post on the Serotta until I find the right Campagnolo post. The Aero section is 100mm to the saddle rails, and the Gazelle, wouldn't you know it, has about 95mm of post exposed. So the new post goes on the new bike.
I did, however, put my Flite saddle on it and test fit the post on the Gazelle just to see how it looks:
Now would anyone have guessed it was a Shimano part if I hadn't told you?