What is this?

[ramwing7]

I have finished reassembly of my 1949 Sunbeam S7 Deluxe.
Almost.
I have one part leftover.
Does anyone recognize this?
Thanks.

[R]

Bracket, miscellaneous, emergency use only.
??

Is the horn, muffler, seat or toolbox missing this VITAL piece of bracketry. !

Was your bike black to begin with.
Always worth checking, if this is a foreigner  ...

Ain't old bikes fun.

[ramwing7]

OK.  Obviously it's vital.   
I'm suspecting it's holding a cable or wire somewhere.
I'm sure I'll spend hours trying to find where (NOT!).
The old stuff is definitely fun.  At least they have parts I can lose, which is more than I can say for newer stuff.
Must be why I have so many of the darned things.   
Well, it's black now.  I have yet to find any other color anywhere else.  But, you never know.  75 years is quite a while for a motorsicle to stay unsullied.

[cardan]

The big hole is about 1/2" - pretty big for a bracket on a bike - so maybe do a lap of the bike with the mystery part offering it up anywhere there is a 1/2" nut! Then hang it on a a nail on the shed wall.

How about a pic of the bike?

Leon

[Rex]

I can't enlarge the pic to see the detail, but it looks like a rear hub brake spindle brace (I don't know if S7's used this) or part of the rubber engine mounting assembly?
Probably wrong on both counts though

[ramwing7]

It's already hanging on a nail.  It's such a nice piece of brass, that I hate to assign it that fate.  I'll take another lap or two before I hang it up again.
Thanks to all.