ID Help: Large 48" Earthenware Amphora with Oral History (Hingham, MA Auction)

This is a fascinating object, and I am curious if anyone reading this might recognize it. While it features a classic European shape, it carries a unique oral history regarding its manufacture and use. This large, partially glazed earthenware amphora was acquired at an auction in Hingham, Massachusetts, approximately 35 years ago. According to the seller, it originally served as a studio pottery sign mounted to the front of a building. The piece stands roughly 48 inches high by 30 inches wide at its widest point. The exterior features decorative straight and wavy incised lines encircling the glazed section. While it bears no maker's mark, a distinct hole in the back suggests it may have been used for pouring liquids, or perhaps secured to a wall with a mounting rod. 

Any thoughts on its origin? Does anyone remember seeing this used as a store sign?

Large Earthenware Amphora Acquired About 35 Years Ago in Hingham, Mass.

Oral History Says it was a Studio Pottery Store Sign

Stands 48" Tall

There is a Hole on the Front of It Near the Bottom

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Photo Courtesy: Private Collection

Another View of the Large Amphora

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Photo Courtesy: Private Collection

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