Early Pace Hubs? Anyone recognise?

[sparkybhp]

Just picked up a project bike and it’s got a set of Pace Hubs laced to M231 rims. Front hub is black, rear is silver. Rear looks pre-hyperglide at first glance.
Pics:

Front is laced in snowflake pattern.. Anyone know what they are? I’ll put up better pics once I’ve stripped the bike and cleaned them.
Thanks

 

[benjabbi]

RC-50.
Out of the 92 catalogue in the archive.

 

[sparkybhp]

Thanks - ah, a screw on freewheel, that makes sense now!