I finally located a pair of Swiss Army nailed mountain boots. They're totally awesome old school quality. Made by Bally in 1951, Eu size 48, mondopoint 32/6 and un-issued. To accompany them I picked up some wool and then leather gaiters.
But "Eu size 48, mondopoint 32/6"... 32/6 - is NOT a Mondopoint size (Mondopoint size = 320 mm), is could be Swiss size, harmonized with Mondopoint system, and 6 is the width (narrow boots).