Blade performance

[Winblows]

7 shaves. I've never seen or heard of this blade. I only have this one. It came together with some of my vintage Gillette razors.

1. Gillette New SC
2. Gillette Tech with Maggard MR8 handle
3. Mühle R41
4. Gillette Slim @3
5. Gillette Tech
6. Frankenrazor (Gillette Old Type top cap, common handle / Fatip base plate)
7. Gillette Tech

This blade gave me burns/nicks with the aggressive razors and worked perfect in the mild ones.