2007 SP Authentic Miguel Montero By the Letter Rookie Signatures Autograph #BL-MM /75
Miguel Montero · Upper Deck · Rookie Card, Autograph, Manufactured Patch, Numbered
Player
Miguel Montero
Set
2007 SP Authentic By the Letter Rookie Signatures
Year
2007
Card #
#BL-MM
Condition Grade
Estimated PSA 7 (Near Mint). The card exhibits visible edge wear and whitening on the bottom right/left corners. Thick stock cards from this era are prone to chipping. The autograph on the letter appears slightly faded but intact.
Category
Rookie Card, Autograph, Manufactured Patch, Numbered
Manufacturer
Upper Deck
Demand Level
Moderate. Montero has a dedicated fanbase in Arizona and Chicago (Cubs), but as a retired catcher, his market is stable rather than 'hot'. Interest primarily comes from set builders and team collectors.
Valuation
Raw (Ungraded) Value
$25.00 - $45.00
Graded Value
PSA 7: $40-60, PSA 8: $75-90, PSA 9: $125+. Note: Grading costs may exceed the value premium for this specific player.
Comparable Sales
Similar 'By the Letter' autographs from this era for mid-tier stars sell for $20-$50. A similar Miguel Montero recently sold in the $30 range on eBay. Prices for these have remained stable over the last 3 years.
Description
A stunning 2007 SP Authentic rookie card featuring Arizona Diamondbacks catcher Miguel Montero. This 'By the Letter' insert features a large manufactured letter 'K' (likely from a 'BACKS' or 'MONTERO' nameplate) with an on-letter autograph. The card is serial-numbered 32/75 and features the iconic SP Authentic holographic finish.
Key Features
True Rookie Year card; On-card autograph on jersey-style lettering; Serial numbered to only 75 copies; Player was a 2-time All-Star and World Series Champion.
Authenticity Indicators
High confidence. Correct 'SP Authentic' holographic logo; valid Upper Deck serial numbering font; authentic 'Rookie Card' logo placement; ink saturation on the letter matches known authentic examples.
Flaws to Note
Significant whitening on the bottom corners and chipping along the bottom edge. Surface scratches visible on the silver foil areas. The letter patch shows slight fraying at the edges which is common for this thick-stock product.
Selling Guide
Where to Sell
eBay is the best platform for this card due to the high volume of team-specific collectors. Facebook groups dedicated to Diamondbacks or Cubs memorabilia are also strong options.
Selling Tips
Do not grade this card; the visible corner wear will likely result in a grade that doesn't justify the fee. When listing, use keywords like 'RC', 'Auto', 'Patch', and 'Numbered'. Take the card out of the scratched top-loader for photos to show the surface clearly.