Thank you, that's exactly what I was after.

I suspected it was Victorian at the earliest and probably later.

I've none. I'm not really going for authenticity, just trying not to mix and match too much. Probably all for naught as regardless of what kilt I wear this weekend I'll have on my coisiche monaidh ghillie brogues (hiking boots--my feet ain't what they used to be and they're the only shoes I've got I can last all day in.)

I was thinking I might just use a cap badge if I felt the need. Maybe not.