I recently acquired what I believed to be a banjo ukulele from the 1920s or 30's. However I cannot find any identifying mark or logo to show who made it. The only brand names can be found on the bridge and tailpiece which are both original which say Grover. Any help is very much appreciated.
https://www.dropbox.com/s/e1ip6qmxuwn20a6/IMG_20131217_131913.jpg
https://www.dropbox.com/s/wcqp2gv5g3qrbmt/IMG_20131217_131920-1.jpg
https://www.dropbox.com/s/qyuzbrne35p2gpc/IMG_20131217_131933.jpg
https://www.dropbox.com/s/0avg0y5wpnyibj7/IMG_20131217_131941.jpg
https://www.dropbox.com/s/wiqw79aid62ixyo/IMG_20131217_131946.jpg
https://www.dropbox.com/s/e1ip6qmxuwn20a6/IMG_20131217_131913.jpg
https://www.dropbox.com/s/wcqp2gv5g3qrbmt/IMG_20131217_131920-1.jpg
https://www.dropbox.com/s/qyuzbrne35p2gpc/IMG_20131217_131933.jpg
https://www.dropbox.com/s/0avg0y5wpnyibj7/IMG_20131217_131941.jpg
https://www.dropbox.com/s/wiqw79aid62ixyo/IMG_20131217_131946.jpg