It's definitely a B3000.
Synopsis: Hammond's early big attempt at a portable B3.
Cabinet Size: 47x39x29 (WDH inches), 263lbs with bench.
Manuals: Swell and great, 61 playing keys each.
Pedals: 25-note radiating detachable pedalboard.
Controls: 9 preset keys and 2 sets of 9 adjustable harmonic drawbars for each manual, (lower B preset had different harmonics; 16',8',4',2',1' mellow and bright). 2 adjustable (16' and 8') for pedals.
Features: 2nd/3rd percussion as per B3, sustain, reverb, transposer, key click, built in Leslie controls (for HL722), vibrato (simulated), optional cover. No tone generator in here ...
Source: http://www.jackhollow.co.uk/hammond/modellist/models.html