Topic: Sandcast or K0 brake caliper mount?

[Magpie]

Hi!
Quick question, the brake caliper mount on my 12/69 K0 and my K1's have a brake caliper mount have a hole for the tab for the brake hose "holder" bolted on the rear of the mount. The one that came with my 1/70 K0 does not have this hole. Before I go drilling a hole or change it out for one with this hole, is the one without the hole a very early mount? I don't want to mess with it if it's a valuable early mount. Thanks, Cliff.
K1 type mount

The one that came with the bike. There is a dot where the tab would/may go. In the close up it looks like that may have been sawed off. Jeez I wish the bikes could talk and tell their stories.

Thanks,
Cliff.

[Don R]

These came with my K1 drag bike, no idea why both calipers face the same way.

[Don R]

 The sandcast needs cleaned up.

[BenelliSEI]

Cliff..... my s/c is a pretty early one and it has the tab for the extra screw. I think yours has been modified?