Postby dragonflywink » Sun Feb 04, 2018 12:26 pm
Don't believe there is any difference in source or dating between the two, just that the punches appearing to be missing the '1' were worn or damaged, and was only noting that Evon's attribution was done without apparent knowledge of the pieces with the '1' - also believe there might be an anomaly concerning the dates of operation for the Marshall Field workshop, but again, she does note the marks were "attributed". An engraved date is not necessarily an indication of age, the engraving can be done by anyone at any time after manufacture - there's really little question that these pieces date to the first couple of decades of the 20th century, they show up in numerous catalogs and advertisements, suppose it's possible, though I'm doubtful, that they were still in production in 1951...
~Cheryl