How Far Back Can We Go? Sixth Edition! Ended At 1380 Waiting On 1379

Another Brandenburg 1/12 Thaler, this one from 1683.

The original envelope indicates its owner at that time paid 25 cents for this coin in April 1955. It's a bit more expensive now, but still probably less so than inflation would allow for.

Absolutely stunning 1/2 Thaler @tdz.

Here is a 6 Groschen from Poland dated 1682 AD:

Now that's a very interesting commemorative issue.

The obverse and reverse are a scaled-down rendition of the 5 Ducat Gold issue of Prince-Archbishop Maximilian Gandolf, Reichsgraf von Kuenburg, a common practice for Gedenkmünze (commemorative issues)

On the reverse we see The Most Holy (Sanctissimus or "SS") St. Martin(us), Bishop ("EPiscopus") of Tours, and at his side ("translati") are the martyred Saints Vincenti(us) of Saragossa, Hermes, and the odd couple Chrysanth(us) and Daria.

The aforementioned martyrs all had shrines or tombs at the Catacomb of Priscilla on the Roman route known as the Via Salaria, an important Adriatic trade route for the salt mines.
This ties into Salzburg which was the center of salt production and trade on the River Salzach.

The symbol which looks like a 9 or an apostrophe is the abbreviation for the Latin ending "us."

von Kuenburg is probably best known for the Counter-Reformation incident which would take place two years later in 1684 when he expelled ~650-700 Protestants from the Defereggen Valley, a rather nasty bit of religious intolerance provoked by the alleged Protestant harassment of a seller of Catholic "holy tokens" or devotional medals. Those expelled were forced to leave in the dead of winter. Their possessions were seized and heavily taxed; their minor children were forced to remain behind and convert to Catholicism, and the taxes levied against their parents' holdings were used to pay for the children's "conversion."

Spoiler: it didn't work out so well for Austria. The final mass expulsion in 1731 sent 30,000 or more Protestants away, many to East Prussia, where they were warmly received by Frederick William I.
The influx of immigrants allowed Frederick and later his son to repopulate East Prussia and rebuild the Prussian armies, in addition to providing economic benefits from taxation and tithes. A resurgent Prussia ultimately wrested control of Silesia away from the Habsburg Austrians during the War of the Austrian Succession.

A lovely coin!

@tdz I agree with your assessment. The Salzburger Dom does have the relics. And the use of "translati" does have both secular and religious meanings as you noted. I cannot infer intent but the double entendre is definitely interesting.

Here is a 6 Groschen from Poland dated 1681 AD:

1680 -- city of Magdeburg, 1/24 thaler:

Here is a 1/24 Thaler from the German State of Saxony dated 1680 AD: