help with Nicca ID

[dexdog]

Does anyone know what incarnation/model/flavor of Nicca is advertised on the following eBay link? I am guessing a model 3F, but don't know for sure- it looks a lot like the Nicca 5L, without the hinged back and film reminder features. The auction title implies that it is a 3F, but many sellers aren't so good at describing items correctly. Also, does anyone know of a book that covers the Niccas? Thanks.

http://cgi.ebay.com/Tower-48-Nicca-...ryZ30030QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[dazedgonebye]

This link may help:
http://myweb.tiscali.co.uk/iannorris/leica_copies/index_n.htm

 

[xayraa33]

it is the later Nicca 3-F with lever wind.
this one is under the Tower label.