WS 19 spare tube box

[David Dunlop]

I was looking at two cases of mine this morning and realized they are similar to the two Bob posted photos of.

I have a similar pair. Neither has a C-Broad Arrow Stamp anywhere on them. One came with an American made Mk II 19-Set finished in No. 2 Brown that does have the C- Broad Arrow Stamp on the Set and PSU Cases. The other is a stand alone case finished in a wrinkle OD Green.

What I have just noticed is that the one case was issued with a pair of spare E1148 Valves (the wrinkle OD Green case). In the second case (in No. 2 Brown), the uppermost E1148 is replaced with an additional 6K7G. Never noticed this before and now I am wondering why. Were there problems with E1148's early in production that required the 19-Set be issued with 2 spares?

I don't think I have ever seen a Canadian made Spare Valves Case with two E1148's, unless this was with very early production as well?

David