John :
yes the blade is swedish so much I have found out and lot of my planes have those blades
not that I know how they ceep the edge , I still have to sharpen and hone mine
but I still has a few hundred parts need to go thrugh citric acid
you will see they are made of two different steal if you clean the side and look at it you can see
the lamination and where its start
The EGYL stamp I´m not sure of but my gess is that it cuold have been an owner ,schoolname, busyness-tag
since the paper JPBO logo is the Danish factory name ( I not sure they excist anymore )
is yours with wedge or the newer levercap type over the dubble irons and what planes are they :-)
well better yet a Picture…..LOL
take care
Dennis
