WTB Vintage Gillette combination set 461B brush

I'm looking for and ready to buy the brush that completes the Gillette Combination set 461B (or similar). Preferably with the appropriate caps.

I have no idea where to start looking as my searches are going nowhere fast. So I figured the best place to start SHOULD have been here.

Any suggestions are helpful or if you have one, let PM me.

 

[tonich]

That's a great start!
Good luck!

This is the brush, for reference:

Gillette 103-a collapsible metal handle brush

 

[rcmii]

Thanks! Had no idea of the number, so this is a nice start. Love B&B members...