{gbW: "654", gbH: "700", mW: "350.0", mH: "375", kb: "138 KB", notes: "For model Na-Ald Tube Sockets, Alden-Napier Manufacturing Company; Springfield (MA):[br]By courtesy of Dale Davenport, Fort Smith, Arkansas, USA", title: "Alden-Napier Na-Ald Tube Sockets uploaded by Konrad Birkner † 12.08.2014 (2)", ite: "2"}
{gbW: "933", gbH: "576", mW: "500", mH: "308.0", kb: "29 KB", notes: "For model Na-Ald Tube Sockets, Alden-Napier Manufacturing Company; Springfield (MA)", title: "Alden-Napier Na-Ald Tube Sockets from Konrad Birkner † 12.08.2014 (1)", ite: "1"}
{gbW: "542", gbH: "479", mW: "424.0", mH: "375", kb: "66 KB", notes: "For model Na-Ald Tube Sockets, Alden-Napier Manufacturing Company; Springfield (MA):[br]US periodical What to built? Vol. II, No.1, by Alden MfG Co.", title: "Alden-Napier Na-Ald Tube Sockets uploaded by RM Member (sID 38) (2)", ite: "2"}
{gbW: "236", gbH: "992", mW: "89.0", mH: "375", kb: "60 KB", notes: "For model Na-Ald Tube Sockets, Alden-Napier Manufacturing Company; Springfield (MA):[br]Radio Broadcast, Feb, 1926, p. 486", title: "Alden-Napier Na-Ald Tube Sockets uploaded by Hans-Joachim Korn † 16.11.15 (2)", ite: "2"}