Adrian Barrell

It certainly did, the 17 pdr is twice the size of the 75mm and fitting it into the Sherman turret was quite an achievement.

Fireflys were only converted from Sherman I (M4) and Sherman V (M4A4). This was mainly due to the ammunition stowage requirements not suiting the Sherman III (M4A2) as the generators and clutch housings on the 6046 protrude into the fighting compartment slightly. British and Commonwealth armies used large numbers of Sherman II, 5041 being delivered compared to only 1990 to the Soviets. The later M4A2 (76) was different, the Soviets receiving 2073 whereas the British Army only got 5. Sherman V was our most common model, 7167 being delivered, almost the whole production run (7499). Sherman III was used in dedicated units but when Firefly was introduced, this did lead to having two fuel types in use in each troop.

It's still the rarest engine surviving with only three, possibly four currently running. One in Belgium, one in the UK, one (my old one), possibly two in the US. There are a few people hoping to restore one, some good progress is being made in Europe. Mine engine was the only one restored from a range wreck, albeit with NOS blocks. There are a few more that would run with a bit of work in museums.

Quite likely if that happens again..... (I know what you meant)

Looks like parts from the No1 base for the WS11.

I thought it had to be an X as neither of the strokes are vertical, ruling out K and the join is too far down to be a Y. As for Wiki errors, yes well, the less said the better! Well done for pinning it down.

You can discount several options by looking at what squadrons those codes related to. https://en.wikipedia.org/wiki/List_of_RAF_squadron_codes

Looks like DX which was 4 sqdn SAAF. They were in Italy in 44 flying ground attack sorties.

Not a re-enactor but Wikipedia, (I know, I know) says :-The term "Ammunition boots" is a generic term for these heavy, studded ankle boots, which were produced in a variety of patterns. The name supposedly comes from the boots' being historically procured by the Master Gunner and the Munitions Board at Woolwich (the Regiment of Artillery's headquarters) rather than Horse Guards (the headquarters of the British Army), and being of 'ammunition quality'. No idea if this is correct but sounds plausible.

If it's a BOC Pug, I have one with a long and short track. I can measure and photograph it in the morning but it's an Aluminium extrusion, about 6" wide with four raised ribs. One about 1/4" in from each side for the drive wheels and a pair with a 1/4" gap between them in the centre for the support wheel.

Other than being Lucas, I have no idea! Is the flex conduit going spare?

Looks like International halftrack. 100 amp without needing a shunt.

Do you have any wartime anti tank items? 2, 6 and 17 pdr?

One comment I would make is the pre-1960 exemption is 'used unladen' not non-commercial. If claiming the exemption it must be used unladen and or towing an unladen trailer. You can't carry any load, even if private. I suppose for a recovery vehicle, the used commercially might apply as you can't really have one unladen!