Hi Teena,

Thank you for contacting Mearto with your appraisal inquiry.
This mint set was issued in wide release and several sets have been offered at auction, with none bringing more than $20 at auction (for the most recent and most comparable example: https://www.liveauctioneers.com/item/75383393_kennedy-half-dollar-mint-set-1964)
Based on the photos and information provided, and subject to examination, this is:

A Kennedy Half-Dollar Mint Set
1964
Comprising a half-dollar, quarter, dime, nickel and penny, in a commemorative sleeve
CONDITION: encased in a protective sleeve
PROVENANCE: was client's husband
$15-25*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, and thank you again for using Mearto.