Official Texas Bullion Program – CM Mint Mark Variety
Summary
The 1991 State of Texas 1 oz Silver Round (CM) is the last known issue in the Texas-themed bullion series marketed under the Official Texas Bullion program and produced by Colonial Coins (Houston, Texas). This variety is identified by the “CM” mint mark and is typically encountered with a proof-like finish, exhibiting reflective fields and strong contrast between devices and background surfaces.
The design continues the established State of Texas format, incorporating Texas independence imagery derived from the State Seal of Texas, presented in a reversed orientation across the obverse and reverse. This issue represents a continuation of the series into the early 1990s, maintaining the standard one-ounce .999 fine silver format while displaying refined surface quality consistent with proof-like production.
How to Identify This Round
The 1991 CM variety is identified by the “CM” mint mark located to the right of the central design and a distinct set of measurable die characteristics. A small star appears on each side of the date “1991.”
The Alamo façade displays ten total window openings plus the central doorway, consisting of four lower windows flanking the entrance, five windows across the middle level, and one small upper porthole-style opening centered above. The structure shows clean, evenly engraved stonework with moderate-to-sharp architectural detail.
The inscription “REMEMBER THE ALAMO – GOLIAD” appears above the Alamo with clear, legible lettering and even spacing. The “R” in “REMEMBER” and the “D” in “GOLIAD” are partially truncated by the wreath overlap.
The Six Flags are rendered with balanced detail. The French flag (left) shows defined Fleur-de-lis elements. The Spanish flag displays a crown with a fully jeweled band and visible interior detail. The Mexican flag shows partial interior design detail. The American flag (lower right) features fully formed stars and clearly separated stripes, alternating between raised and flat fields. The Confederate flag displays four visible stars.
In the lower design, the cannon is depicted in left-facing profile with visible contour lines, the bridge includes defined structural support detail, and the river appears as a smooth field with minimal engraved line detail.
The inscription “TEXAS ONE AND INDIVISIBLE” is clearly struck and fully legible.
The wreath shows a symmetrical arrangement of seven acorns and four olives.
The surfaces exhibit a proof-like finish, with reflective fields and contrast between raised devices and background surfaces.
When these characteristics are observed together with the CM mint mark, the round can be confidently attributed to Colonial Coins (Houston, Texas) within the State of Texas series.
Details
| Year | 1991 |
|---|---|
| Type | Round |
| Set/Collection | State of Texas Rounds (1986–1991) |
| Mint Mark | CM |
| Manufacturer / Mint | Colonial Coins (Houston TX) |
| Issuer | Colonial Coins (Houston TX) |
| Obverse Image |  |
| Design: Obverse |
The obverse features the Great Seal of the State of Texas beneath a five-pointed star and the inscription “TEXAS SILVER.” A wreath of olive and live oak branches surrounds a central shield with the Alamo above and lower scenes of a cannon (left) and bridge over water (right). The Six Flags of Texas radiate behind the shield. A banner above reads “REMEMBER THE ALAMO – GOLIAD,” and a ribbon below reads “TEXAS ONE AND INDIVISIBLE.” The date 1991 appears at the bottom, flanked by stars, with the “CM” mint mark to the right. |
| Reverse Image |  |
| Design: Reverse |
The reverse shows a symmetrical wreath of live oak (with acorns) and olive branches, tied at the base. The design includes seven acorns and four olives with defined leaf detail. Surfaces are proof-like, with reflective fields and frosted devices, bordered by a beaded denticle rim. |
| Edge Type | Reeded |
| Edge Inscription | none |
| Metal | Silver |
| Fineness | .999 |
| Weight (grams) | 31.1 |
| Weight (troy oz) | 1 |
| Diameter (mm) | 39 |
| Thickness (mm) | 2.85 |
| Attribution Notes | The “CM” mint mark is documented within the State of Texas series and attributed to Colonial Coins (Houston, Texas). This mark represents a later-stage production within the series and is consistently observed on 1991-dated issues. |
| Notes | The 1991 CM issue follows the standard 1 troy ounce .999 fine silver format and is typically encountered with a proof-like finish, showing reflective fields and strong contrast between devices and background surfaces. This variety is distinguished by balanced engraving detail, partial letter truncation in the upper inscription, and a wreath arrangement of seven acorns and four olives. |