Editing Northgate OmniKey: Gen1 (section)

==Notes from Polecat==
I now have 60 Gen1 Northgates  listed in my database. Here are some statistics for particular features: 

*1u backspace & On / Off switch - 2 (very early)
*Black painted key mount plate - 4 (early; not known on all examples)
*Sefco red label (FCC# FU44S2 KB-555) - 21 (early)<ref>https://deskthority.net/viewtopic.php?p=455958#p455958</ref><ref>https://klikkyklik.wordpress.com/2017/04/16/omni-key102/</ref>
*Generic version - No OmniKey102 badge.  Warranty label and different inspection number format - 3 (late)<ref>https://deskthority.net/viewtopic.php?p=448041#p448041</ref>

The later 102 models (post-Sefco label) didn't have an FCC ID, so the only FCC number I have on a Gen1 is FU44S2 KB-555. Chyros has commented on this in one or more reviews and the speculation is that the KB-555 may be related to the Focus FK-555 keyboards (which are not the same as the Northgate 102, but were probably built in the same factory). Strangely, one Gen1 102 showed up on ebay with a Focus FK-555 label on the bottom.  As I stated above, 21 of 60 examples had the red Sefco label, but for some reason, only this one had the R-3 and 560-0-0000003 model number!