[Johnson] Johnson Ranger II with tube sockets riveted to chassis ?

[Glen Zook via Johnson]

Generally, yes.  The kits generally had the tube sockets attached with machine screws and nuts.   Glen, K9STH Website: http://k9sth.net
      From: Richard Wayne <rwayne at vnet.net>
 To: johnson at mailman.qth.net 
 Sent: Wednesday, September 2, 2015 1:00 PM
 Subject: [Johnson] Johnson Ranger II with tube sockets riveted to chassis ?
   
I have a Ranger II with the tube sockets and other pieces mounted to the
chassis with rivets.

Is this an indication that this rig was a "factory wired and tested" unit?

Any related  information will be appreciated.