Pete - I have three ELEY variations in this caliber. One has much thinner letters than the ones pictured here. It has an unplated brass-jacketed bullet. It also has a lighter roll crimp at the mouth, although the bullet may have been pulled at one time, as on side of the “crimp” is actually curved out a little, like it has been distended. A second one is essentially like yours, but while the crimp is as heavy as yours, it is not so sharply defined. You don’t see and well defined “line” where the crimp begins, below the mouth. The third round has an even wider roll crimp, but again, not so well defined. It also has a different headstamp, with smaller letters and without the two short lines.
Sorry for the poor picture. It is lightly stamped, and the case has darkened with age, so I lightened it to give the best image I could get. It is a scan, not a camera-made photo.
Regarding the different crimp on the one originally shown. It also has a slightly different headstamp than mine. It appears almost like it is taper-crimped, rather than roll-crimped. Perhaps just a change in production?