Brake levers?

[Milzy]

I bought these for £4 but noticed there’s no surround at the top or will the hood fit down and cover the holes? What Shimano levers are they?
I’ve circled the area with a colour.

 

[Poacher]

The levers will fill the gaps when brake cables are fitted and tensioned.
No idea what model they are.

 

[Milzy]

The levers will fill the gaps when brake cables are fitted and tensioned.
No idea what model they are.

They look like super SLR 400 but no surround. Either very old early ones or missing surrounds. I can see 400 stamped on the metal in the picture.