Peckris

They were spectacularly incompetent when changing to a 50% alloy in 1920.

What does the remaining 7.5% of sterling silver actually consist of?

I don't think the right hand picture is of a sandblasted die. Unlike the one on the left, the finish is very uneven, like an ordinary example that's simply not been cared for properly. You can see bits of the original lustre which couldn't possibly be present on a sandblasted example - you can compare with the even matt finish on the left.

Probably the first and last time I will see anyone get excited about a 1937 penny.

If it's pre-1920 it could be either. Post-mint damage to the 50% alloy coins will show some discolouration whereas that looks pure silver.

I should add one - just one! - track that's absolutely guaranteed to get anyone on the dancefloor: Earth Wind & Fire and the Emotions - Boogie Wonderland.

What date is it?

That IS very nice indeed. Especially as 1920s and 1921s are often pretty ropey.

How long before some of those appear on eBay as "genuine" listings!

That must have come too late for inclusion in his survey of varieties in the 1970 annual - I've posted a link to my scan of that on Page 2 here.

This is just a random selection of 8 favourite tracks (such a choice is in reality impossible): - Neneh Cherry & Yousuf N'Dour - 7 Seconds - Laurie Johnson - Theme to 'The Avengers' - Love - Alone Again Or - The Beach Boys - Surf's Up - The Who - Baba O'Riley - David Bowie - Life On Mars? - Ralph Vaughn-Williams - Fantasia on a theme by Tallis - Creedence Clearwater Revival - I Put A Spell On You (no Beatles as I simply found it impossible to isolate just one song)

Don't bother with the soap and water treatment - it doesn't work with bronze (water off a duck's back and all that). The olive oil MAY do something - either a little or moderately - so worth trying.

Interestingly, Wikipedia has the word 'the' in lower case, implying either that it wasn't used as part of the name, or that there is some doubt about it.

To see the green blood pour out?

I think you'll find that UK collectors make a sharp distinction between 'die errors' (which result in a certain number of struck examples) and 'striking errors' (which are usually unique but regarded as curiosities). Die cracks fall somewhere between the two : they're not die varieties strictly, as there is no element of human causation, but on the other hand there could be a number of examples out there. The kind of thing you're talking about can best be illustrated by two examples: 1. The 1918KN 'crows foot' error on the neck of the portrait. This is distnictive enough to be easily recognised and is collectable, though not at much of a premium over normal. 2. The die fill that caused the designer initials "EF" to disappear on the reverse of some 1961 halfcrowns. At one time this was regarded as a kosher variety, but not now. I think where die faults result in a distinctive rare variety (the 1946 ONE' penny being an example) then you will see them catalogued and collected, otherwise they tend to be ignored.

I actually don't (not easy for me - I have a different type of disability, though I am good with cameras). It's not very exciting, it's a very thin wavy line to the left of the lighthouse, not quite as high as the lighthouse itself. I've looked for a picture online but Google is no help, and Michael Gouby's / Tony Clayton's sites don't have even a mention let alone a picture.

I have the incuse wave variety! Cost me £10 from a Phoenix Fair for a BU specimen some years ago. (There's one born every minute...) Just in case it's of interest, here is the 1970 list of known coin varieties (at that time) by David Sealy and published in the Coins & Medals annual for the year: https://www.dropbox.com/s/zkw5a84yv88c2o8/Coin%20Varieties%201970.pdf?raw=1

The whole series, in fact.

"The" Gorillaz lol. That's like talking about The Pink Floyd, The Genesis, or The 10CC!

Mea culpa. When you said "SLR" I assumed you had one and therefore were talking with knowledge, or I wouldn't have started!

The denarius (silver) was replaced by the antoninianus (various degrees of silver wash; valued at 2 denarii) and ultimately with the follis which was 100% bronze. The antoninianus was introduced by Caracalla so that is what it could well be.

I hope you're being generic! Otherwise I'll take that remark with a mighty pinch of salt. A mirrorless ILC is every bit as good as a DSLR, and even a serious enthusiast FLZ (like the Sony RX100 series, Lumix LX10/100, the Canon equivalent, etc) will do a great job, having both good DOF, low noise at high ISO, and fast lenses.

No-one should be without a copy of "Dub Side Of The Moon"! (Easy Star All-Stars).