https://www.ebay.com/itm/1975-ALEMBIC-Series1-Omega-Cut-Electric-Bass-Free-Shipping-Vintage-w-HC-B1810/332640677745?hash=item4d72edef71:g:BmIAAOSwWGda7IvM (https://www.ebay.com/itm/1975-ALEMBIC-Series1-Omega-Cut-Electric-Bass-Free-Shipping-Vintage-w-HC-B1810/332640677745?hash=item4d72edef71:g:BmIAAOSwWGda7IvM)
I saw that one too, Rob... nice example of Chain-Links' ancestry. I was going to post it the other day, but you beat me to it. ;D
Did you notice the earlier two-tab pickups? Not sure exactly when those went out, but I think it must have been sometime in mid/late '75. Now that I think of it, your #174 had them in older pictures... I'd guess they were updated when the neck replacement happened. This bass must be fairly close.
Greg, yes, love the old style omegas, and your fine example as well! Not sure when the adjustable pickups come into being, perhaps sometime in '76?