Canadian Voyageur Silver Dollar — 1965–1966
Photo credits and rights on the linked coin profile.
Canada • 80% silver, 20% copper
Issue years: 1965–1966
Fine silver: 0.599290 troy oz
Austria • 1 Austrian thaler
Maria Theresa Silver Thaler Restrike
Maria Theresa Silver Thaler Restrike uses 0.7517 troy oz fine silver per coin from the matching reference. Its reported gross weight is 28.0668 g and fineness is 0.833. This guide uses the matching reference KM T1 1780-SF restrike record because the named world-silver melt table omits this type. The illustration shows the 1780-dated design; its actual manufacturing year is not established by the photograph.
Windrain; CC0; resized WebP; paired photograph separated · Image source · CC0 — photograph license
Windrain; CC0; resized WebP; paired photograph separated · Image source · CC0 — photograph license
When a fresh spot bid is available, melt values use fine-metal content × spot bid. CashForCoins guide buying offers use the separately configured percentage for each metal. Selected rare/numismatic coins require an appraisal. Dollar amounts remain unavailable when a fresh quote or buying percentage is missing.
Verified coin specifications
- Country
- Austria
- Face denomination
- 1 Austrian thaler
- Composition
- 83.300% silver; balance alloy metal
- Gross weight (grams)
- 28.0668
- Fineness
- 0.833
- Fine-metal weight (troy oz)
- 0.7517
- Diameter (mm)
- 41
- Edge
- Lettered; inspect actual specimen
- Mint
- Austrian historical trade coin; mint varies
- Mint mark
- S.F.; does not establish strike year
- Restrikes
- 1780-SF retained-date restrike; strike year varies
- Face date
- 1780 (fixed restrike date)
This is the date on the restrike design. Actual manufacture can be later; the date alone does not establish the striking year.
- Source precision
- The owner’s named world-silver melt table does not list this type; its matching reference KM T1 record supplies .8330 fineness, 28.0668 g gross and .7517 oz ASW. The calculator retains reported ASW. Other .833333 conventions or .7520 ounce displays are not substituted silently. The fixed 1780 face date is distinct from actual manufacture.
Calculate this coin’s metal content
Formula: specified fine-metal troy ounces × quantity. Dollar melt value additionally requires an approved current metal price.
Obverse: identify the front
Maria Theresa faces right in a draped bust. The legend surrounds the portrait and S.F. appears below. Preserve the brooch, veil and rim when taking a comparison photograph; small design details can matter to specialist attribution. Those initials are not a manufacturing date.
Reverse: identify the back
A crowned double-headed eagle with shields fills the center. The fixed date 1780 is divided around the lower inscription. Read the entire design rather than identifying an Austrian silver coin from an eagle alone. The same historic design has been reproduced by different mints and at different times.
History and purpose
The reference’s KM T1 record expressly describes the 1780-SF restrike category and notes production by different mints. This guide addresses that retained-date reference family. It does not claim the photographed specimen was struck in 1780 or establish which later facility made it.
How to identify this variant
Use the Maria Theresa bust, double-headed eagle, 1780 date and S.F. initials together. The matching reference record gives nominal 41 mm diameter; a measurement or apparent silver color alone does not establish authenticity. Preserve the edge lettering and provenance when a specialist attribution matters.
Understanding its metal content
The calculator follows the cited 0.7517 troy oz fine-silver amount; three correctly identified coins total 2.2551 troy oz. The separately reported nominal mass calculation is 28.0668 g × 0.833 = 23.3796444 g, or approximately 0.751673 troy oz. Published rounding can make these displays differ; the source precision note records the distinction. The calculator does not measure wear or determine an actual purchase offer.
Dates, varieties and composition changes
The 1780–1780 dates field records the fixed face date. Actual striking dates extend beyond that year, and a familiar retained date cannot establish an original lifetime issue. The reference notes multiple varieties and mints; avoid assigning a mint or manufacturing year from these face photographs alone.
Melt value versus collector value
Inspect unusual mint details, edge lettering, countermarks and original provenance before grouping every 1780-dated thaler as interchangeable metal. The generic restrike calculator does not assess a specific variety. A countermarked or otherwise exceptional example may require its own identification and appraisal.
Authenticity and condition
Read the denomination, both face designs, full date and mint details together before choosing a calculator entry. Keep photographs of the rim and any original holder with the record. Measure an intact coin using a suitable scale and caliper; do not clean, scratch or bend it to test the metal. Reference photographs illustrate a design and do not authenticate or grade another specimen. An unfamiliar date, mount or altered detail warrants individual examination.
Selling this coin
Keep this denomination separate from similar-looking smaller coins and from other alloys. Count only examples whose type has been identified; set uncertain pieces aside for appraisal. Record quantities, readable dates, mint details and both-side photographs using the existing quote form. The prefilled context helps identify the lot, while nominal metal content, collector assessment and any actual offer remain separate.
Sources and calculation methodology
The owner’s named world-silver melt table does not list this type; its matching reference KM T1 record supplies .8330 fineness, 28.0668 g gross and .7517 oz ASW. The calculator retains reported ASW. Other .833333 conventions or .7520 ounce displays are not substituted silently. The fixed 1780 face date is distinct from actual manufacture. The owner selected reference as the deciding reference when metal specifications disagree. Source photographs, their reuse rights and face assignments are reviewed separately. These are reference specifications, not a first-party assay or a current market quote. No approved live price feed is configured, so dollar melt values remain unavailable. Dates of review reflect actual editorial work.
Common questions
Does a 1780 date make this an original 1780 coin?
No. The restrike family retains the historical date. Manufacturing date and original attribution require further evidence.
How much silver does this reference calculator use?
The matching reference KM T1 record reports .7517 troy oz ASW. Three coins total 2.2551 oz. Its .833 fineness display is retained as reported.
Does S.F. identify the actual year or every later mint?
No. Keep those design initials separate from manufacturing provenance. The reference photographs do not establish a striking facility or year.
References
- NGC: Maria Theresa 1780-SF restrike KM T1 — identity; weight 28.0668 g; fineness .8330; ASW .7517 oz; diameter 41 mm; dates fixed 1780 and restrikes 1853 onward; design bust/double eagle; multiple mints; indexed type record (checked 2026-10-10)
Issue-year references
Content maintained by CashForCoins. Last substantive record update: 2026-10-10. Report a specification or attribution issue through our contact page.
Related coins
Liberty Seated Silver Dollar
Photo credits and rights on the linked coin profile.
United States • 90.0% silver; balance copper
Issue years: 1840–1873
Fine silver: 0.773400 troy oz
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