Yes but there are exceptions. I have to disagree with the OP ID to RIC 61 which needs to have the obverse legend with C following IMP. RIC 62 has the legend IMP AVRELIANVS AVG. RIC 62 is a varied number since it covers all the Oriens walking left coins with no C on the obverse. That includes the series of officina marks P to X (ordinals and Roman numerals mixed in where the ordinals would duplicate on used before - S is secundus but sextus and septimus got VI and VII) in exergue, a series P through VII in the field with XXI in exergue, a series AXXI to ZXXI (Greek numerals 1-7), and a series with the P to VII in field as before but the XXI moved into the field to be replaced by a lion in exergue. That means a complete set of RIC 62 would be 31 coins. I sincerely doubt you have enought time on earth remaining to assemble that set since the lions are bears to find. Both of my 62's are S (6th) officina from the Greek series. It gets worse when we move to RIC 63 which offers no lions but has Sol standing still instead of walking. Here you can get the ordinal series P to VII in field with XXI in exergue, a series with Greek numerals in exergue following the XXI and a series moving the Greek numeral before XXI but putting an R for Rome after it. I have the delta to show. The next two RIC numbers are still Oriens but Sol gets a bow in 64 (Eng's coin above) and a trophy in 65. I'm not sure how many of these coins actually exist since RIC notes that some of the series had not been seen by them but I doubt many of you were planning on having over 50 or 60 Rome mint Oriens which would be possible. Mat's coin is a Ticinum mint (TXXT) where the first T stands for Tertia officina and the last for the city name. Mine is a Prima officina but has changed from the Oriens legend to Soli Invicto. Ancient coins: There must be a million of them. I would love to have the new and updated RIC for this period. There will be more varieties if the online listing is any indication. This site is not the easiest to use but they have a lot of nice coins. http://www.ric.mom.fr/en/home How many Aurelian Sols are in your future? Common or rare, only the lion seems to bring a premium. I would not sell mine.
This is actually a concern for me when it comes to higher-end coins. Fully silvered coins can cost many times more than their non silvered counterparts in similar grades. How do you tell if the silvering is original or recent? Personally, I won't pay a huge premium for fully silvered coins because of that concern, but perhpas I'm paranoid. I prefer the look of partial silvering anyway.
Here's an Aurelian with clear white spots. The letter or number in exergue seems also vague to me. I can scarcely read it.
V is the expected reading for officina 5 (quinta) in the same series as the OP coin with P(rima). There could be a mark after it???
I just showed this coin of Aurelian in the Newest Acquisition section, but my new coin is very similar to the first first example design and legends-wise.