Tool / blade ID help please

[evercl92]

I'm assuming these are for a cutter or scraper of some kind but I can't seem to find this exact one.

If anyone has a name for these that would be awesome.

Thanks in advance

 

[4xdog]

Molding plane blades?

 

[The Cobbler]

that's what they look like, half of a style & rail set for doors, windows etc