The black Impero with the steel Campy pump head dates from 1972 when I got my Bob Jackson. It lived along the seat tube without straps and survived many dirt roads without popping out. It's principal advantage is that a chasing dog knows when it's been whacked with a Campy pump head
I think I still have a spare leather washer or two in the boneyard, although with a little bit of grease they last a long time.
The blue one has the plastic head and someone gave it to me when they saw I had a vintage bike and they'd moved on. It goes very nicely into the Nagasawa frame and is a good color match to the yellow of the frame.
I find that I don't use these anymore. The Bob Jackson, the Nagasawa, and the Litespeed share a handlebar bag that has a Topeak Mini Morph in it. The Firefly and the Bingham both have small Almsthre bar bags, and the FF has a Lezyne Road Drive and the Bingham, needing lower pressures, has the Alloy Drive. I'd need to get new frame pumps for each differently proportioned compact frame.
I imagine that if I had more flats on the road I'd be more likely to carry a frame pump. These days the few flats I get seem to be slow leaks that show up overnight after a ride.