A whole 'Can of Worms'
When did they change the blade sizes on No.5 & a half planes? Did you even know about this?
I've wanted to build a no.5.5 plane for a good while now. And when I tried my new old stock;
'Smoothcut - laminated steel - made in Japan' plane blade into the body, it didn't fit.. And I was flumuxed. So this whole journey started.
Sorby, Preston, Marples, Record and others, including Stanley in the USA had changed their blade widths at some point in time.
But when? Watch this video that opened my eyes, and the story continues