Need Help dating G.G.S.

Hi Tele,

The Mk4b in Canada would have been used in the Sea Fury and Vampire F3.

I’ll take a look on my Mk4B to see if there is a similar decal there, as I think mine came from Canada too.

Hi Tele,

Yes, I agree with Bruce.

Dated between 1947-1950.

Not many survive as they were converted into the mk4e variant.

Thank you all for your replies. So likely fitted to the first Canadian Jet fighter ,the Vampire. It has a RCAF Service tag attached. Does anyone recognize the partial decal on the front? Thanks again.

Hello,
I was wondering if anyone could help in dating my Mk 4B gun sight. Can a date be identified by reference number? I have included photos including one showing 3 patent numbers. Thanks for any help.

Hi Tele,

Yes, I agree with Bruce.

Dated between 1947-1950.

Not many survive as they were converted into the mk4e variant.

Although the earlier TF.2 may of used the MK.4B I’m unaware of Wyverns using it. I have the service S.4 down as using the MK.4E ref 8B/2912. But like most things Wyvern information is pretty hard to come by.

Rob

And indeed what it was fitted to. 4B is a pretty rare thing, and was quickly superseded by the 4E. 1947-50 would be my guess

The reference number does not relate to date at all, indeed there are numerous cases where it totally confuses! The Mk 4E was in service by the early 50s say 1953 in Venoms, so at a rough guess maybe 1946-54. Wyvernfan may have a better idea.