DEI is Latin for God.
It will appear on many British Coins and coins of many of the British Empire/Commonwealth countries.
The full, unabbreviated legend for a 1958 (Elizabeth II) coin would read "ELIZABETH II DEI GRATIA BRITANNIA OMN REGINA FIDEI DEFENSOR" meaning - "Elizabeth II by the Grace of God, Queen of all the Britains, Defender of the Faith".
Depending on the coin and country, it would often be shown very heavily abbreviated as "ELIZABETH II DEI GRA BRITT OMN REGINA F D", or even "ELIZABETH II DEI GRATIA REGINA" with "FID DEF" on the reverse.
You fail to specify what type of coin you refer to. The only gold British coin minted in 1958 was the Sovereign.
The cast of Civitas Dei - 1958 includes: Charles Fawcett Gabriele Tinti
La rivolta dei gladiatori - 1958 is rated/received certificates of: Finland:K-16
The cast of Il teatro dei ragazzi - 1958 includes: Umberto Melnati
How much would it be worth for this coin...1777 carolus 111 dei gratia silver spanish coin
A Victoria Dei Gratta Regina 5 cent coin is worth anywhere from $10 to $20 dollars. The price is determined by the year and condition of the coin.
USD10k
wht the value
The latin Dei Gratia Regina Fidei Defensor which translates as " by the Grace of God, Queen and Defender of the Faith"
VICTORIA DEI GRATIA tells me who the queen is, it tells me nothing about the coin. Whatever the coin is, if it was minted in 1854, it was probably minted at the Royal Mint in London.
The Latin phrase "Dei Gratia Regina Elizabeth" translates as Elizabeth, queen by the grace of God. This phrase (or an abbreviated version, D. G. Regina) appears on all the coinage of the British Commonwealth, therefore it does not identify a specific coin. I don't even know what country it is from, let alone what its denomination is. Furthermore, even if I knew exactly what coin you were talking about, the value varies tremendously depending upon the condition of the coin. Most coins from 1958 would have no value to a collector unless they were in extremely good condition.
The worth of a Dei Gratia 183 Ferdin VII Spanish coin depends on its condition. On average, the coin is only worth between $10.00 and $40.00. A local pawn shop or coin dealer, would be able to inspect the coin and give you a better value.