If you mean F# and G, the answer is a big yes. Even if you mean just F#, it is still very uncommon. Out of 25 or 30 Couesnons I own or have owned, only one had the F# and none had the G. The F# I have is a 14,xxx serial and a great horn.
I'd really like to see some pictures of yours.
I'd really like to see some pictures of yours.