Je was op zoek naar: overlaying (Engels - Japans)

analysis shows it's from sussex with london mud overlaying it.
サセックスの泥の上に ロンドンの泥が付いてた

and their pillars were four, and their sockets of brass four; their hooks of silver, and the overlaying of their chapiters and their fillets of silver.
その柱は四つ、その座も四つで、ともに青銅。その鉤は銀、柱の頭のおおいと桁は銀である。