The RECTL mold chips that came out of USPC were
also slick slugs... at least the examples I
handled.

Though I don't know when Ben Marden's Riviera
(building), Ft Lee, NJ, RECTL mold chips were
made, the examples I had were also slick.... and
they were made before the breakdown of the Poker
Chip Division (1948-49) at USPC.

JB