Plaza Theatre

Looks as if Plaza signage later was moved over to adorn the former Roxy exterior. Note that the rough stone facade match in bottom two pictures.

Obviously a favorite pastime of Plaza owners was to change marquee signage. To see a period photo of the Plaza in one of its many incarnations type in word “plaza”, then hit search …
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This was in the Joplin Globe in February 1950:

Picher, Okla., Feb. 10.â€"After a quarter-century of tenancy at 107 East Second street, the Boston Realty Company today moved its quarters out of Picher’s “danger zone” as outlined by the Eagle-Picher Mining and Smelting Company. This is the first move of a business firm from the four square-block area the mining company says may be hazardous because of being undermined.

The move was announced by Joe Vincent, manager of the agency the last 27 years, and this afternoon he established his new office at 218 South Connell avenue, a block and a half from the limits of the undermined zone. The Boston Realty Company handles leases and rentals for the Eagle-Picher company.

Picher’s darkened theater, the Plaza, is to be moved out of the danger zone as soon as possible, according to announcement today by L.H. Wells, Picher manager. He quoted Kenneth Blackledge of Oklahoma City, division manager for Video Theaters, owners of the Picher house, as saying the 1,000-seat theater would be moved. The Video company owns another theater in the undermined area but this house has been closed for several months. The Plaza theater suspended operations when the mining company recommended that residents and business houses of the district evacuate the area within 30 days.

According to these LIFE 1950 photos, the Plaza Theatre was closed, condemned, & razed in 1950;
boxoffice & posterboard view -
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and a street view
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The reason for the LIFE 1950 essay on Picher was because the government had condemned over half the town due to unsteady underground mine shafts. The Plaza Theatre was razed due to this fact.
It was reported last Sunday on Dateline NBC that now (sixty years later) what’s left of Picher has also been condemned. By the end of this year citizens will be evacuated and all buildings will be bulldozed under. Picher will be no more!