The Custodian Guitar Project

Clear vintage guitar and amp appraisal guidance for owners and families.

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No-pressure appraisals • Phone photos are enough • No obligation to sell

Vintage Martin D-18 Appraisal

We help owners and heirs understand what a vintage Martin D-18 is worth before they sell. Originality, crack history, neck angle, finish condition, and family provenance all help shape the appraisal context.

Value is feature-specific

Period details and condition can create major differences between similar-looking guitars.

Repair history counts

Neck resets, crack repairs, bridge work, and finish touch-up should all be documented.

Useful before selling

We help you understand where the guitar sits before you choose a sale path.

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