manufacture date (traditional estimates)
1930 shipment date, according to Spann's Guide to Gibson
Mandolin, Style F5
Factory Order number: 9619
Later "fern", Master Model label, odd tailpiece cover w/ larger "The Gibson" and "zag" only at top
From Darryl Wolfe.
Darryl Wolfe's F5 Journal is the authoritative work on the subject of Loar-signed and later Gibson mandolins