manufacture date (traditional estimates)
1930 shipment date, according to Spann's Guide to Gibson
Mandolin, Style F5
Factory Order number: 9619
Fern, late '20's script & fern with early tuners, "Master Model" label.
From Darryl Wolfe.
Darryl Wolfe's F5 Journal is the authoritative work on the subject of Loar-signed and later Gibson mandolins