I have a Long Beach one, I'll post it up soon so you can see it. There are several variations of the LB frame. The major cities tend to have more than one variation of their frames in terms of build material ( plastic, pot metal ) and districts within the cities. I have personally seen:
1) Long Beach Datsun ( Plastic ) with stenciled paint lettering
2) Long Beach Datsun ( Pot metal with embossed letters )
3) Coast Datsun Long Beach ( Pot metal with emboss )
4) L.A. Harbor Datsun ( Metal, emboss )