Gibson F5 Mandolin #73998 Signed by Lloyd Loar July 9, 1923
Signed by Lloyd Loar July 9, 1923 manufacture date (traditional estimates) 1923 shipment date, according to Spann's Guide to Gibson
Mandolin, Style F5
Factory order number unknown
there is no Virzi in this instrument
Triple bound on sides.
From Darryl Wolfe. Darryl Wolfe's F5 Journal is the authoritative work on the subject of Loar-signed and later Gibson mandolins