Errors?

[dougsmit]

Is anyone else here interested in Late Roman Error coins?

This Magnentius is a flip over double strike (not very unusual in late Romans) but the first strike was a brockage so this coin shows three strikes of the reverse (one incuse) and only one of the obverse.  It started as a Magnentius RIC 138 page 187, I believe?

[Victor]

I find some errors interesting, like overstrikes. I had one brockage, but I sold it. My favorite errors are not striking errors though, but mistakes the engravers made with the die like spelling, wrong mintmarks or errant fieldmarks.

[dougsmit]

What do you see here?  Rotating the image make it a little easier to diagnose.   My main question is what was the mint of the top strike?  The undertype is clearly Aquileia. 

[Victor]

I am not sure, I stared at it until I was cross-eyed! The obverse legend looks like it should be DN CONSTANTIVS IVN NOB C with an A behind the bust. The reverse looks like it has a gamma in the left field, but I can't really make out much in the exergue.

[Genio popvli romani]

Very special and interesting errors. I do like errors too and when they are combined with a commemorative Constantinopolis coin.....

[Genio popvli romani]

This one (probably a GE) seems to be a common brockage, but there is something more that I can't identify, a re-strike?

[dougsmit]

I am not sure, I stared at it until I was cross-eyed! The obverse legend looks like it should be DN CONSTANTIVS IVN NOB C with an A behind the bust. The reverse looks like it has a gamma in the left field, but I can't really make out much in the exergue.

My best guess is an undertype of RIC 107 Aquileia overstruck with RIC 343 or 345 Siscia.  That last mint is mostly a guess but fits the II in the reverse field.  I may be imagining a shadow of an S in SIS at the bottom almost aligned with the S from the obverse legend that fell at that same region.  I am not 100% clear on ID of Siscia Gallus portraits but believe this is possible here. 

The CII brockage reminds me of my Tetricus ()which I attributed to the coin falling part way out between two blows of the hammer.  I really do not have a certain answer for how this happened but suspect each coin received more than one blow of the hammer and something like this shows a shift between these sequential hits. 

[Victor]

I just saw this one for sale.

[Victor]

I just got this one

[Victor]

Here is one that is a bit of a mess...it's interesting because it is two different busts.

[Victor]

here are two brockages

Constantius II
Brockage
16x17     2.1gm

Constantinopolis
Brockage
15x16mm    2.7gm