Coupons for The Mason Jar in Harwich Port

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The Mason Jar

Cape Cod’s best sandwiches – “The Best Stuff Comes Straight From The Jar.”  Gourmet Catering for all Occasions.

2020 Best of Cape Cod Winner!

  • 2020  Sandwiches – Silver

544 MA-28, Harwich Port, MA 02646

(508) 430-7600

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