GLORIA EXERCITVS - 2 soldiers standing, facing, holding spears in outside hands and leaning inside hands on shields, flanking a single legionary standard with a chi-rho Christogram on it
As you probably noticed, there is almost no legend on the obverse. All that ever made it onto this undersized flan is the "...B C" at 4:00 or so - and it's too bad, too, because the detail of the coin is so good and crisp otherwise - but the legend never made it onto this coin in the first place - the flan was too small for the dies. The "...B C" indicates that it was struck for someone before they had become emperor. Unfortunately, there are 4 suspects and we will never be able to be completely sure which it is. Three of Constantine the Great's sons:
Constantine II
Constans &
Constantius II,
also:
Delmatius - a cousin - but Delmatius is pretty rare, and it's fairly unlikely that's who it is.
All four used this reverse in the 335-337 A.D. time-frame.
My best guess is that it's Constans because his shorter name could account for the seemingly broad spacing of the couple of extant letters.

FL IVL CONSTANTIVS NOB C
CONSTANTINVS IVN NOB C
FL IVL DELMATIVS NOB C
FL CONSTANS NOB C

are the most common forms of their names for this series. Also, unfortunately, the exergue similarly failed to make it onto the coin, so I can't tell you at which of the myriad of operating mints it was struck, either.

Info supplied by Mark Lehman

Illinois Tim's 45 BC Addedomaros Celtic gold stater 5.63g, 17.96mm

CCI 05.0678

Early Roman silver coin in rough shape sent off to Mark at the URF for a best guess 1.96g, 15.61mm

'That's a "Legionary Denarius " of Marc Antony.
32-31 B.C. is when it was minted, but these, being of baser silver than the denarii of the early empire (and finer silver than the denarii of the 3rd century), seemed to stay in circulation for a very long time, first because they weren't worth turning in at a discount, and later because they were too valuable to turn in. They circulated widely in the Provinces, and in fact, are found in hoards up to 300 years later than their mintage-date. You can see this one is quite worn, so it probably had been around for a long time before it was lost. The obverse has a galley sailing (rowing) right (your photo is 90 degrees off to clockwise) and the legend: ANT AVG III VIR R P C. The reverse shows a legionary eagle (Aquila) between two legionary standards and names the legion between them as: | LEG | XI | which I believe, but am not sure this is. They're known for legions I through XXX (with a few missing). XI is a common legion, some are scarce, some rare'.

Charles 1st hammered silver one pence -

1625-42 AD Struck at the Tower mint under the King type 3a1

Wis Dave's 1/4 Uninscribed Celtic gold stater 1.43g, 12.98mm found by Wis Dave

'Yes, this is interesting. It's an uninscribed quarter stater, traditionally attributed to the Atrebates (in the South Thames) but almost certainly a North Thames issue. We have records of about 25 of them, and without exception they've come from the North Thames area: it was previously attributed to the Atrebates because of the style, which resembles their uninscribed quarter staters with a wreath on the obverse. The date of this quarter would be around c. 45 BC, I would estimate, so like the Whaddon Chase it could be just a little earlier than the Addedomaros coins. It is catalogued in Van Arsdell as VA 260-1, but not only wrongly as Atrebates but also listed as silver. Many of the surviving examples are struck from the same pair of dies, which develop some fairly major flaws, especially on the reverse; the lack of many dies suggests this wasn't a very big issue, in comparison to the Addedomaros spiral for example.

If I remember rightly there are one or two examples of this type in the huge East Leicestershire hoards which came up about 3 years ago, but mostly they're Essex/Suffolk area. This'll be CCI 05.0683'.

Chicago Ron's 'Snettisham' type ? Celtic gold full stater 5.85g - 17.05mm

'Having seen this one I've had to think again about 05.0680, the Whaddon Chase type I wrote about earlier. Although quite different in their individual style these are probably both the same variety of WC stater, actually listed as VA 1498. This is a rather puzzling type because it's not clear whether it really belongs to the WC group or - as you suggested - the Snettisham type. There are 18 examples of it here and those with findspots are a mixture of Essex, Suffolk and Norfolk - on that basis it could arguably be either WC or Snettisham. In terms of style, they are perhaps among the very last WC staters rather than being the first Snettisham, which appear to have been based on the Whaddon Chase design. In terms of date this might only be a difference of a few months, and almost certainly not more than a few years, so it's perhaps unreasonable to expect we'll be able to tie it down quite so neatly. CCI 05.0687'.

1247 Henry III voided longcross hammered silver penny Class V5

1,33g,18.11mm

Chicago Bob found a monster of a gold ring which weighs in at a hefty 14.40g, 25.47mm dia.

This has been reported to the museum as potential treasure and will go to the British Museum to determine it's age

1670 hammered copper Half penny

HFR - S.R

'It's almost certainly 3rd century by the radiate crown on the obverse - it looks nothing like a 4th century "post-reform radiate". I'm not making out any legends or the reverse type on that one, either. What is the diameter in mm? I'd say, depending on diameter, that it's either an official antoninianus from the darkest hour of the Empire - Gallienus-Claudius Gothicus - 260-270 A.D. or a contemporary (so-called "barbarous radiate", although I dislike that term - the folks who made and used them were no more barbarians than the Italians) imitative radiate'

Info form Mark at the URF.

Large 1stC Roman bronze

'Are there any letters at all visible in the obverse legend on the sestertius-sized piece? My only guess, and it's certainly no more than a WAG at best, is Trajan Decius, based solely on the portrait. I can't make anything recognizable resolve out of the reverse image for that one yet, either. If (and it's a big if) it is Trajan Decius, it would date to 249-251 A.D'.

Info form Mark at the URF.

1272AD Edward 1st hammered silver penny

1.05g, 18.08mm

2.03g – 17.7mm

'obviously don't have to tell you that this is Vespasian, but this one is so nice and clear that I will give you chapter and verse from the standard references - no uncertainties with this one!

15 minutes later:
Hah! - I read that last sentence with a new personal appreciation of the word "hubris". This was no simple lookup!

First, this combination of obverse and reverse does not go together - this coin should not, strictly speaking, exist. That should have been my first clue - that, or maybe the low weight at 2.03 gm, or MAYBE the spots of core-exposure. This is a fourree. A contemporary counterfeit, made to deceive. A copper blank was wrapped with silver foil and struck with dies made to emulate types found on denarii..Mulings of obverses and reverses that do not belong with each other are common on fourrees. This piece may be even more interesting for being an ancient forgery than it would have been had it been official.
I have in my own collection a fourree denarius of Otho with a reverse of Vespasian - inscribed like this one: COS ITER TR POT (but with a different type) Evidently, the second consulship of Vespasian was a popular subject for forgers' dies, and also, that was a time of particular activity for those involved in this risky business.
My best guess is that it was manufactured around 72-75 A.D., and probably made the trip from Italy to England - I'm not familiar with this sort of imitative from England, although AEs of the Julio-Claudians were extensively - and crudely - imitated in the Isles.

Cool find, still, even if it did lead me a merry chase!'

Mark

EMC 2005.0229 found by NY Ken

King Offa - 780 - 792 King of Mercia hammered silver 1.27g, 16.67mm

OFFA REX (‘King Offa’) and, on the reverse side, Eð / IL / VA / Ld (‘Ethilwald’ - the moneyer who authorised the minting of the coin).

1696 William III 1 Gold Guinea coin weight

8.07g, 20mm dia, 3.3mm T

1st to 4thC Roman bronze fibula brooch - unusual design not in my reference books

4.14g, 27.42mm L, 11.62mm W

17thC pocket sun dial fragment

50.27mm L, 11.62mm W

1892 Queen Victoria milled silver sixpence (top left)

1896 Queen Victoria milled silver three pence (bot left)

1817 George III milled silver shilling, 12 pence (right)