It depends on how it takes someone to turn up a vintage photo of Callahan's between 1945 and 1950.
The owners of Callahan's are looking for photos "Before our Dad bought his business."
Anyone submitting a photo must have proof of the time it taken to document its authenticity.
Callahan's was closed by its second-generation owners in 2006 but reopened in 2014 as a food truck by third generation Daniel DeMiglio.
The truck is at the Meadowlands Flea Market in East Rutherford on Saturdays and other locations.
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